{"product_id":"proflow-cylinder-heads-rocker-kit-supermax-efi-aluminium-complete-590-hp-63cc-chamber-200cc-intake-runner-efi-holden-commodore-vn-pair-pfeahh20063-efi-rrk6","title":"Proflow Cylinder Heads \u0026 Rocker Kit, SuperMax EFI Aluminium, Complete, 590 HP, 63cc Chamber, 200cc Intake Runner, EFI Holden Commodore VN, Pair - PFEAHH20063-EFI-RRK6","description":"\u003cp\u003e\u003cb\u003ePart Number\u003c\/b\u003e: PFEAHH20063-EFI-RRK6\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProflow Holden Commodore VN SuperMax Aluminium Heads \u0026amp; Rocker Kit Complete\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003eProflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of Engine, for SB \u0026amp; BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V \u0026amp; 3V \u0026amp; BB FE, and Chrysler SB \u0026amp; BB, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. These fully assembled heads have stainless steel valves and high performance valve springs.  Perfect for your Mild or High performance Hot Rod.\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cstrong\u003eMust Use Proflow Shaft Mount Aluminium Rocker kit # PFERRK-6000\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Can use CC-4769-16 if your needing to run a smaller ID spring.\u003c\/p\u003e\r\n\r\n\u003cdiv style=\"overflow-x:auto;\"\u003e\r\n\u003ctable align=\"center\" border=\"0\" cellpadding=\"5\" cellspacing=\"1\" style=\"margin:auto;width:500px;\"\u003e\r\n\t\u003ctbody\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e\r\n\t\t\t\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\r\n\t\t\t\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eCombustion Chamber \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 64 cc\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eIntake Port Volume \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 200 cc\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eIntake Port Dimensions \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 2.150” (H) x 1.290” (W)\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eExhaust Port Volume \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 72 cc\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eExhaust Port Dimensions \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 1.440” (H) x 1.270” (W)\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eSpark Plug Location \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e OEM\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eIntake Valve Diameter \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 2.020”\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eValve Material\u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003eStainless Steel 21-4N + 4Cr9Si2\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eExhaust Valve Diameter \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 1.60”\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eValve Stem Diameter \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 8 mm\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eValve Spring Pocket ID \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 1.650”\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eValve Guide OD \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 0.530” (0.560\" at base)\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eMaximum Valve Lift \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 0.650\" (0.050\" margin)\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eRocker Stud Thread Size \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 7\/16”-14\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eValve Angle \u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 3°\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e \u003cstrong\u003eDeck Thickness \u003c\/strong\u003e\n\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e 0.780”\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eCoil Bind\u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e1.095\"\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eInstalled Height (int.)\u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e1.792\" @ 141 lbs\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003e\u003cstrong\u003eInstalled Height (exh.)\u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e1.780\" @ 144 lbs\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr style=\"background:#dddddd;\"\u003e\r\n\t\t\t\u003ctd style=\"text-align: right;\"\u003eSpring Rate\u003c\/td\u003e\r\n\t\t\t\u003ctd\u003e331 lbs\/in.\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cstrong\u003eProflow SuperMax Pro Roller Rockers Kit - Holden V8 VN 5.0L Carby or EFI , Proflow or Edelbrock Cylinder Heads\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003eProflow offers SuperMax Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The SuperMax rocker arms are made from quality 2024 aluminium extrusions built to withstand over 850lbs of max open spring pressures! This kit includes CNC-machined billet steel pedestals, and ground steel alloy rocker shafts, which come complete with all the components and hardware required for a professional installation, including shims. These 2024 custom aluminum formulas are designed for the Serious racer and have had extensive RND and testing conducted before release, meeting all nessasary performance requirements. SuperMax Series aluminum shaft rocker arms are available for a variety of engine applications.\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003eSuits 5.0L VN style heads\u003c\/li\u003e\r\n\t\u003cli\u003eShaft mount full roller style\u003c\/li\u003e\r\n\t\u003cli\u003e1.65 Ratio\u003c\/li\u003e\r\n\t\u003cli\u003e7\/16\" Stud Size\u003c\/li\u003e\r\n\t\u003cli\u003e850 lbs max open pressure\u003c\/li\u003e\r\n\t\u003cli\u003eFEA designed and tested\u003c\/li\u003e\r\n\t\u003cli\u003eMirror polished roller tips for smooth operation \u003c\/li\u003e\r\n\t\u003cli\u003eSocket head cap screw mounting studs\u003c\/li\u003e\r\n\t\u003cli\u003eExtruded from aircraft grade 2024-T6 aluminium\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003eEdelbrock Performer VN 5.0L Heads\u003c\/li\u003e\r\n\t\u003cli\u003eProflow SuperMax VN 5.0L Heads\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003c\/div\u003e","brand":"Proflow","offers":[{"title":"Default Title","offer_id":45233653448931,"sku":"PFEAHH20063-EFI-RRK6","price":5872.7,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/0821\/9875\/files\/PFEAHH20063-EFI-RRK6_6e95719d-e9ac-4554-97d4-6642b73f45d4.jpg?v=1775534209","url":"https:\/\/fastlanespares.co.nz\/products\/proflow-cylinder-heads-rocker-kit-supermax-efi-aluminium-complete-590-hp-63cc-chamber-200cc-intake-runner-efi-holden-commodore-vn-pair-pfeahh20063-efi-rrk6","provider":"Fast Lane Spares","version":"1.0","type":"link"}