{"title":"Cylinder Head Porting","description":"\u003cp\u003eCylinder head porting is\u003cspan\u003e \u003c\/span\u003e\u003cmark class=\"HxTRcb\" data-complete=\"true\" data-sae=\"\"\u003ethe process of modifying an internal combustion engine's intake and exhaust passages to improve airflow efficiency\u003c\/mark\u003e\u003cspan\u003e, which increases \u003c\/span\u003e\u003cstrong class=\"Yjhzub\" data-complete=\"true\" data-processed=\"true\"\u003ehorsepower, torque, and overall engine efficiency\u003c\/strong\u003e\u003cspan\u003e. The goal is to reshape the ports to reduce obstructions and turbulence, allowing the engine to breathe more easily.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-complete=\"true\" data-sae=\"\" data-processed=\"true\" data-sfc-cp=\"\" data-animation-nesting=\"\" role=\"heading\" aria-level=\"3\" class=\"otQkpb\"\u003eHow Porting Improves Performance\u003cspan data-complete=\"true\" data-wiz-uids=\"PTyMtc_16,PTyMtc_17\" class=\"txxDge notranslate\"\u003e\u003cspan data-sae=\"\" data-wiz-attrbind=\"class=PTyMtc_15\/TKHnVd\" data-animation-atomic=\"\" class=\"vKEkVd\"\u003e\u003cbutton data-ved=\"2ahUKEwje9_DjiIeSAxVySWwGHW9qLWEQye0OegQIBBAA\" data-wiz-attrbind=\"disabled=PTyMtc_15\/C5gNJc;class=PTyMtc_15\/UpSNec\" class=\"rBl3me\" aria-label=\"View related links\" data-icl-uuid=\"7b08d018-3f36-40b1-a197-5aecca183f36\" data-amic=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\"\u003e\u003csvg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" height=\"12px\" width=\"12px\" fill=\"currentColor\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul data-processed=\"true\" data-complete=\"true\" class=\"KsbFXc U6u95\"\u003e\n\u003cli data-sae=\"\" data-complete=\"true\" data-hveid=\"CAUQAA\"\u003e\u003cspan data-complete=\"true\" data-sfc-cp=\"\" class=\"T286Pc\"\u003e\u003cstrong data-complete=\"true\" class=\"Yjhzub\"\u003eIncreased Airflow\u003c\/strong\u003e: By removing rough edges, casting flaws (flash), and sharp turns, porting allows a greater volume of the air-fuel mixture to enter the combustion chamber and for exhaust gases to exit more quickly.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sae=\"\" data-complete=\"true\" data-hveid=\"CAUQAQ\"\u003e\u003cspan data-complete=\"true\" data-sfc-cp=\"\" class=\"T286Pc\"\u003e\u003cstrong data-complete=\"true\" class=\"Yjhzub\"\u003eEnhanced Combustion\u003c\/strong\u003e: Better airflow dynamics and mixture distribution lead to a more complete and efficient burn of the air-fuel mixture.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sae=\"\" data-complete=\"true\" data-hveid=\"CAUQAg\"\u003e\u003cspan data-complete=\"true\" data-sfc-cp=\"\" class=\"T286Pc\"\u003e\u003cstrong data-complete=\"true\" class=\"Yjhzub\"\u003eReduced Pumping Loss\u003c\/strong\u003e: The engine uses less effort to move air in and out of the cylinders, which can result in smoother throttle response and better fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sae=\"\" data-complete=\"true\" data-hveid=\"CAUQAw\"\u003e\u003cspan data-complete=\"true\" data-sfc-cp=\"\" class=\"T286Pc\"\u003e\u003cstrong data-complete=\"true\" class=\"Yjhzub\"\u003eOptimised Velocity vs. Volume\u003c\/strong\u003e: Proper porting balances airflow velocity and volume. Simply making ports larger can reduce low-end torque by slowing the air speed; skilled porting ensures the optimal shape to maintain velocity while increasing volume.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sae=\"\" data-complete=\"true\" data-hveid=\"CAUQBA\"\u003e\n\u003cspan data-complete=\"true\" data-sfc-cp=\"\" class=\"T286Pc\"\u003e\u003cstrong data-complete=\"true\" class=\"Yjhzub\"\u003eSupports Other Upgrades\u003c\/strong\u003e: Porting enhances the effectiveness of other performance modifications such as performance camshafts, upgraded exhaust systems, or forced induction systems.\u003c\/span\u003e\u003cspan data-complete=\"true\" data-wiz-uids=\"PTyMtc_1p,PTyMtc_1q\" class=\"uJ19be notranslate\"\u003e\u003cspan data-sae=\"\" data-wiz-attrbind=\"class=PTyMtc_1o\/TKHnVd\" data-animation-atomic=\"\" class=\"vKEkVd\"\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[{"product_id":"cylinder-head-porting-straight-cartridge-rolls-3-8-80-grit-box-50","title":"CYLINDER HEAD PORTING STRAIGHT CARTRIDGE ROLLS 3\/8  80 GRIT  BOX (50)","description":"\u003cp\u003e\u003cspan\u003eRefine your engine's surfaces with ENGINE PORTING CROSS BUFFS. 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Get your engine looking and running its best.\u003c\/span\u003e\u003c\/p\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103308079264,"sku":"SCR-375-80","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Crossbuff_10422948-1a79-4006-b4b7-d9325e0e774f.jpg?v=1767583510"},{"product_id":"cylinder-head-portingfull-tapered-cartridge-rolls-1-2-40-grit-box-50","title":"CYLINDER HEAD PORTINGFULL TAPERED CARTRIDGE ROLLS 1\/2 40 GRIT BOX (50)","description":"\u003cp\u003e\u003cspan\u003eRefine your engine's surfaces with ENGINE PORTING CROSS BUFFS. Ideal for smoothing out rough areas and improving the overall finish of your engine parts, these buffs are crafted to aid in the porting process, making them an essential for enthusiasts and professionals alike. Proudly made in the United States, these cross buffs are designed for durability and effectiveness. They're compatible with a variety of engine ports, ensuring a consistent and efficient buffing experience. Get your engine looking and running its best.\u003c\/span\u003e\u003c\/p\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103308374176,"sku":"FTR-500-40","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Crossbuff_10422948-1a79-4006-b4b7-d9325e0e774f.jpg?v=1767583510"},{"product_id":"cylinder-porting-cross-buff-1-very-fine-2-ply-box10","title":"CYLINDER PORTING CROSS BUFF 1\" VERY FINE 2 PLY ( BOX10)","description":"\u003cp\u003e\u003cspan\u003eRefine your engine's surfaces with ENGINE PORTING CROSS BUFFS. Ideal for smoothing out rough areas and improving the overall finish of your engine parts, these buffs are crafted to aid in the porting process, making them an essential for enthusiasts and professionals alike. Proudly made in the United States, these cross buffs are designed for durability and effectiveness. They're compatible with a variety of engine ports, ensuring a consistent and efficient buffing experience. 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They're compatible with a variety of engine ports, ensuring a consistent and efficient buffing experience. Get your engine looking and running its best.\u003c\/span\u003e\u003c\/p\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103309160608,"sku":"CB-1M","price":80.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Crossbuff_10422948-1a79-4006-b4b7-d9325e0e774f.jpg?v=1767583510"},{"product_id":"cylinder-head-porting-cross-buff-1-1-2-meduim-2-ply-box10","title":"CYLINDER HEAD PORTING CROSS BUFF 1 1\/2\" MEDUIM 2 PLY ( BOX10)","description":"\u003cp\u003e\u003cspan\u003eRefine your engine's surfaces with ENGINE PORTING CROSS BUFFS. Ideal for smoothing out rough areas and improving the overall finish of your engine parts, these buffs are crafted to aid in the porting process, making them an essential for enthusiasts and professionals alike. Proudly made in the United States, these cross buffs are designed for durability and effectiveness. They're compatible with a variety of engine ports, ensuring a consistent and efficient buffing experience. Get your engine looking and running its best.\u003c\/span\u003e\u003c\/p\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103309324448,"sku":"CB-15M","price":80.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Crossbuff_285c456c-d304-4a24-81ad-1246b69667c7.jpg?v=1767528623"},{"product_id":"cylinder-head-porting-half-tapered-cartridge-rolls-1-2-40-grit-porting-box-50","title":"CYLINDER HEAD PORTING HALF TAPERED CARTRIDGE ROLLS 1\/2  40 GRIT PORTING BOX (50)","description":"\u003cp\u003e\u003cspan\u003eCARTRIDGE, 1\/2 X1X1\/8, 40 GRIT, HALF TAPER CARTRIDGE ROLLS - 50\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e PER BOX\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eBASED IN MELBOURNE SHIPS AUSTRALIA WIDE\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103309586592,"sku":"HTR-500-40","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/HTRCartRolls.jpg?v=1767534811"},{"product_id":"cylinder-vhead-full-tapered-cartridge-rolls-3-8-80-grit-porting-box-50","title":"CYLINDER HEAD FULL TAPERED CARTRIDGE ROLLS 3\/8 80 GRIT PORTING BOX (50)","description":"\u003cp\u003e\u003cspan\u003eCARTRIDGE, 3\/8 X1X1\/8, 80 GRIT, FULL TAPER CARTRIDGE ROLLS - 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Get your engine looking and running its best.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eBASED IN MELBOURNE SHIPS AUSTRALIA WIDE.\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103310733472,"sku":"CB-75VF","price":80.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Crossbuff_10422948-1a79-4006-b4b7-d9325e0e774f.jpg?v=1767583510"},{"product_id":"engine-cylinder-head-porting-cross-buff-flap-wheel-mandrel","title":"ENGINE CYLINDER HEAD PORTING CROSS BUFF\/FLAP WHEEL MANDREL","description":"\u003cdiv class=\"product attribute overview\"\u003e\n\u003cdiv class=\"value\"\u003eCross Buff Mandrel (w\/ 3 Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-info-price\"\u003e\n\u003cdiv class=\"product-info-stock-sku\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003cdiv class=\"product attribute sku\"\u003e\u003cspan\u003eCross Buff Mandrel includes 3 inserts for use with 1.5\", 1\", \u0026amp; 3\/4\" Cross Buffs.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"product attribute sku\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"product attribute sku\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"product attribute sku\"\u003e\u003cspan\u003eBASED IN MELBOURNE. SHIP AUSTRALIA WIDE\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103310766240,"sku":"CB-MANDREL","price":35.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/CB-MANDREL_1b980ab4-e16b-4a55-b741-b22f116e2d82.jpg?v=1767531007"},{"product_id":"cylinder-head-porting-straight-cartridge-rolls-3-8-80-grit-box-51","title":"CYLINDER HEAD PORTING STRAIGHT CARTRIDGE ROLLS 3\/8  80 GRIT BOX (50)","description":"\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-hveid=\"CAEQAA\" data-processed=\"true\"\u003eStraight cartridge rolls for porting are \u003cmark class=\"HxTRcb\" data-processed=\"true\"\u003ebonded abrasive tools, often aluminum oxide, used with a mandrel in a drill for modifying and smoothing internal engine passages (intake\/exhaust ports) to improve airflow\u003c\/mark\u003e, available in various sizes (diameters\/lengths) and grits (coarse to fine) for shaping and polishing cast iron or alloy heads, helping performance. They work by continually exposing new abrasive layers as they wear, ideal for hard-to-reach areas in cylinder heads and manifolds.\u003cspan class=\"uJ19be notranslate\" data-wiz-uids=\"HCinV_f,HCinV_g,HCinV_h\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_f\/TKHnVd;\" data-processed=\"true\"\u003e \u003cbutton data-amic=\"true\" data-icl-uuid=\"e094147f-5dcf-4878-9f68-08dd6b1abb1d\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_f\/C5gNJc;class=HCinV_f\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIARAE\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-processed=\"true\"\u003eKey Aspects of Straight Cartridge Rolls for Porting:\u003cspan class=\"txxDge notranslate\" data-wiz-uids=\"HCinV_n,HCinV_o,HCinV_p\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_n\/TKHnVd;\" data-processed=\"true\"\u003e\u003cbutton data-amic=\"true\" data-icl-uuid=\"188de82e-1471-4ffd-a0ff-90aa5aef9f77\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_n\/C5gNJc;class=HCinV_n\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIAhAA\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-processed=\"true\"\u003e\n\u003cli data-hveid=\"CAMQAA\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003ePurpose\u003c\/span\u003e: To remove material from cylinder heads, intake manifolds, and exhaust ports to smooth surfaces, improve airflow (volumetric efficiency), and increase engine performance, throttle response, and horsepower.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAQ\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eMaterial\u003c\/span\u003e: Typically made from durable aluminum oxide abrasive cloth on a cotton backing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAg\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eTypes\u003c\/span\u003e: Available as straight or tapered, though straight ones are common for general porting.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAw\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eGrits\u003c\/span\u003e: Range from coarse (e.g., 40, 80 grit) for material removal and shaping to fine (e.g., 120, 240 grit) for smoothing and polishing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQBA\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eSizes\u003c\/span\u003e: Come in various diameters (e.g., 1\/4\", 3\/8\", 1\/2\") and lengths, often sold in kits with mandrels.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQBQ\" data-processed=\"true\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eUsage\u003c\/span\u003e: Mounted on a mandrel (a shaft that fits into a drill), these rolls are used to grind and blend metal in confined spaces, consistent cutting action as layers wear down.\u003c\/span\u003e\u003cspan class=\"uJ19be notranslate\" data-wiz-uids=\"HCinV_19,HCinV_1a,HCinV_1b\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_19\/TKHnVd;\" data-processed=\"true\"\u003e \u003cbutton data-amic=\"true\" data-icl-uuid=\"2d9a8380-e6cd-4fef-a240-fedae157e96a\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_19\/C5gNJc;class=HCinV_19\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIAxAG\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-processed=\"true\"\u003eBASED IN MELBOURNE SHIPS AUSTRALIA WIDE\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103310831776,"sku":"SCR-375-80","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/s-l140_17.webp?v=1765748725"},{"product_id":"cylinder-head-porting-straight-cartridge-rolls-3-8-40-grit-box-50","title":"CYLINDER HEAD PORTING STRAIGHT CARTRIDGE ROLLS 3\/8  40 GRIT BOX (50)","description":"\u003cdiv class=\"Y3BBE\" data-sfc-cp=\"\" data-hveid=\"CAEQAA\" data-processed=\"true\"\u003eStraight cartridge rolls for porting are \u003cmark class=\"HxTRcb\" data-processed=\"true\"\u003ebonded abrasive tools, often aluminum oxide, used with a mandrel in a drill for modifying and smoothing internal engine passages (intake\/exhaust ports) to improve airflow\u003c\/mark\u003e, available in various sizes (diameters\/lengths) and grits (coarse to fine) for shaping and polishing cast iron or alloy heads, helping performance. They work by continually exposing new abrasive layers as they wear, ideal for hard-to-reach areas in cylinder heads and manifolds.\u003cspan class=\"uJ19be notranslate\" data-wiz-uids=\"HCinV_f,HCinV_g,HCinV_h\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_f\/TKHnVd;\" data-processed=\"true\"\u003e \u003cbutton data-amic=\"true\" data-icl-uuid=\"e094147f-5dcf-4878-9f68-08dd6b1abb1d\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_f\/C5gNJc;class=HCinV_f\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIARAE\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-processed=\"true\"\u003eKey Aspects of Straight Cartridge Rolls for Porting:\u003cspan class=\"txxDge notranslate\" data-wiz-uids=\"HCinV_n,HCinV_o,HCinV_p\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_n\/TKHnVd;\" data-processed=\"true\"\u003e\u003cbutton data-amic=\"true\" data-icl-uuid=\"188de82e-1471-4ffd-a0ff-90aa5aef9f77\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_n\/C5gNJc;class=HCinV_n\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIAhAA\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-processed=\"true\"\u003e\n\u003cli data-hveid=\"CAMQAA\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003ePurpose\u003c\/span\u003e: To remove material from cylinder heads, intake manifolds, and exhaust ports to smooth surfaces, improve airflow (volumetric efficiency), and increase engine performance, throttle response, and horsepower.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAQ\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eMaterial\u003c\/span\u003e: Typically made from durable aluminum oxide abrasive cloth on a cotton backing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAg\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eTypes\u003c\/span\u003e: Available as straight or tapered, though straight ones are common for general porting.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQAw\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eGrits\u003c\/span\u003e: Range from coarse (e.g., 40, 80 grit) for material removal and shaping to fine (e.g., 120, 240 grit) for smoothing and polishing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQBA\" data-processed=\"true\"\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eSizes\u003c\/span\u003e: Come in various diameters (e.g., 1\/4\", 3\/8\", 1\/2\") and lengths, often sold in kits with mandrels.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-hveid=\"CAMQBQ\" data-processed=\"true\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\" data-processed=\"true\"\u003eUsage\u003c\/span\u003e: Mounted on a mandrel (a shaft that fits into a drill), these rolls are used to grind and blend metal in confined spaces, consistent cutting action as layers wear down.\u003c\/span\u003e\u003cspan class=\"uJ19be notranslate\" data-wiz-uids=\"HCinV_19,HCinV_1a,HCinV_1b\" data-processed=\"true\"\u003e\u003cspan class=\"vKEkVd\" data-animation-atomic=\"\" data-wiz-attrbind=\"class=HCinV_19\/TKHnVd;\" data-processed=\"true\"\u003e \u003cbutton data-amic=\"true\" data-icl-uuid=\"2d9a8380-e6cd-4fef-a240-fedae157e96a\" aria-label=\"View related links\" class=\"rBl3me\" data-wiz-attrbind=\"disabled=HCinV_19\/C5gNJc;class=HCinV_19\/UpSNec;\" data-ved=\"2ahUKEwjQlO2d5-yRAxUthlYBHeAXMB0Qye0OegQIAxAG\" data-processed=\"true\" tabindex=\"0\"\u003e\u003cspan class=\"wiMplc ofC0Ud\" data-processed=\"true\"\u003e\u003csvg fill=\"currentColor\" width=\"12px\" height=\"12px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-processed=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-processed=\"true\"\u003eBASED IN MELBOURNE SHIPS AUSTRALIA WIDE\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103310930080,"sku":"SCR-375-40","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/s-l140_17.webp?v=1765748725"},{"product_id":"engine-cylinder-head-porting-cross-buff-3-4-meduim-2-ply-box10","title":"ENGINE CYLINDER HEAD PORTING CROSS BUFF 3\/4 MEDUIM 2 PLY ( BOX10)","description":"\u003cp\u003e\u003cspan\u003eRefine your engine's surfaces with ENGINE PORTING CROSS BUFFS. Ideal for smoothing out rough areas and improving the overall finish of your engine parts, these buffs are crafted to aid in the porting process, making them an essential for enthusiasts and professionals alike. Proudly made in the United States, these cross buffs are designed for durability and effectiveness. They're compatible with a variety of engine ports, ensuring a consistent and efficient buffing experience. Get your engine looking and running its best.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eBASED IN MELBOURNE SHIPS AUSTRALIA WIDE.\u003c\/div\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103311093920,"sku":"CB-75M","price":85.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Crossbuff_9f3be649-2a70-45c1-8dd9-18d5af368759.jpg?v=1767528501"},{"product_id":"engine-cylinder-head-engine-porting-polishing-kit-48-piece","title":"ENGINE CYLINDER HEAD\/ ENGINE PORTING POLISHING KIT 48 PIECE","description":"\u003cp\u003eComplete Kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 flapwheels\u003c\/li\u003e\n\u003cli\u003e4 CrossBuffs®\u003c\/li\u003e\n\u003cli\u003e7 Full Tapered Cartridge Rolls\u003c\/li\u003e\n\u003cli\u003e7 Half Tapered Cartridge Roll\u003c\/li\u003e\n\u003cli\u003e21 Straight Cartridge Rolls (assorted sizes)\u003c\/li\u003e\n\u003cli\u003e2 Mounted Points\u003c\/li\u003e\n\u003cli\u003e2 Cartridge Mandrels\u003c\/li\u003e\n\u003cli\u003e1 Cross Buff® Mandrel with set screws\u003c\/li\u003e\n\u003cli\u003e1 Plastic Case\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"card__header\"\u003e\n\u003ch2 class=\"card__title heading h3\"\u003eDescription\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card__section\"\u003e\n\u003cdiv class=\"rte text--pull\"\u003e\n\u003cb\u003eEngine Porting Kit can help your engine generate more power\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003cp\u003eBuild the best performance engine or restore like-new performance to your older powerplant using Ayross cylinder head porting tools and accessories. When serious engine builders \"blueprint\" an engine, they'll \"port\" or smooth-off rough head castings around the intake and exhaust ports for smoother airflow. The engine can then \"breathe\" easier, resulting in greater power and efficiency. Not only can this engine head porting kit help your engine generate more horsepower and torque, but it will also improve fuel efficiency, giving you more miles to the gallon as you roar around a track or down the highway.\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli\u003eIncrease horse power and torque on any engine\u003c\/li\u003e\n\u003cli\u003eIndustrial Aluminium Oxide sanding rolls, designed for both cast iron and aluminium cylinder heads\u003c\/li\u003e\n\u003cli\u003eHighest quality components on the market today\u003c\/li\u003e\n\u003cli\u003eDetailed inst. allow you to port both heads in an evening\u003c\/li\u003e\n\u003cli\u003eDeveloped to work with air or electric 1\/4\" collet die grinders\u003c\/li\u003e\n\u003cli\u003eBased in Melbourne Ships Australia wide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103313617056,"sku":"DPK-100","price":235.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/Port_Kit.jpg?v=1767487639"},{"product_id":"cylinder-head-port-reshaping-kit-intake","title":"CYLINDER HEAD PORT RESHAPING KIT INTAKE","description":"\u003cp\u003eWithstands up to 500 degrees! Modify ports for hi-performance by adding material in the right places.\u003c\/p\u003e\n\u003cp\u003eSuperior formula uses 2-part epoxy that won't shrink when dry. Mix ratio is 1:1 by weight. Mix and knead the parts together by hand until the black and yellow colours have combined to make a uniform olive green colours\u003c\/p\u003e\n\u003cp\u003eWorking time at 70ºF: Golfball size 40 minutes max.; Baseball to softball size 30 minutes max.\u003c\/p\u003e\n\u003cp\u003eCure time at 70ºF: Full hardness in 6 to 8 hours. Once cured it forms a hard coating resistant to abrasion, impact, water, chemicals and solvent.\u003c\/p\u003e\n\u003cp\u003eKit includes epoxy, gloves and mixing sticks. Yields 16 oz. of material. 24 month shelf life.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/d3k81ch9hvuctc.cloudfront.net\/company\/MUWfay\/images\/f4512916-db2b-467c-8e20-f2f8199ded4c.gif\" alt=\"Tech Tips from the Techxperts\"\u003e\u003c\/div\u003e\n\u003cp\u003eAdhesion of PRK-99 Intake Port Reshaping Material will only be as good as the cleanliness and soundness of the substrate. Remove all dirt, oil and grease. Sandblasting is acceptable. Scraping, wire brushing and other manual cleaning methods may also work. NOT for use in contact with potable water or exhaust ports.\u003c\/p\u003e\n\u003cp\u003eBased in Melbourne Ships Australia Wide\u003c\/p\u003e","brand":"Ayross Trading \u0026 Distributing","offers":[{"title":"Default Title","offer_id":53103313715360,"sku":"PRK-99","price":155.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/files\/PRK-99.jpg?v=1767487002"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2560\/3488\/collections\/Port_Kit.jpg?v=1768186456","url":"https:\/\/putavd-mn.myshopify.com\/collections\/cylinder-head-porting.oembed","provider":"Ayross Trading \u0026 Distributing","version":"1.0","type":"link"}