{"product_id":"howards-cams-hc123335-12-retro-fit-hyd-roller-cam-253-259-50-chev-bb-396-454","title":"Howards Cams HC123335-12 Retro-Fit Hyd Roller Cam 253\/259 @.50 Chev BB 396-454","description":"\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\n\u003cstrong\u003eHOWARDS CAMS RETRO-FIT HYD ROLLER CAM 253\/259 @.50 CHEV BB 396-454 HC123335-12\u003c\/strong\u003e\u003cdiv\u003eHowards Cams retrofit hydraulic roller camshafts offer more lift and more power for less money. These street performance grinds are perfect for those wanting to upgrade to hydraulic roller cams. Manufactured using the highest grade race-quality cores, Howards precision-grinds their cams to provide the quality and performance that you want at a reasonable price. Overhaul your valvetrain for mild to wild street performance with Howards Cams retrofit hydraulic roller camshafts. \u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eApplication: Chev Big Block Mark IV 396-454 C.I.D. \u0026amp; Gen V 454 C.I.D.\u003c\/div\u003e\n\u003cdiv\u003eCam Style: Hydraulic roller tappet \u003cdiv\u003eBasic Operating RPM Range: 3,400-6,800 \u003c\/div\u003e\n\u003cdiv\u003eIntake Duration at 050 inch Lif 253 \u003c\/div\u003e\n\u003cdiv\u003eExhaust Duration at 050 inch Lif 259 \u003c\/div\u003e\n\u003cdiv\u003eDuration at 050 inch Lif 253 int.\/259 exh. \u003c\/div\u003e\n\u003cdiv\u003eAdvertised Intake Duration: 306 \u003c\/div\u003e\n\u003cdiv\u003eAdvertised Exhaust Duration: 312 \u003c\/div\u003e\n\u003cdiv\u003eAdvertised Duration: 306 int.\/312 exh. \u003c\/div\u003e\n\u003cdiv\u003eIntake Valve Lift with Factory Rocker Arm Ratio: 0.657 in. \u003c\/div\u003e\n\u003cdiv\u003eExhaust Valve Lift with Factory Rocker Arm Ratio: 0.640 in. \u003c\/div\u003e\n\u003cdiv\u003eValve Lift with Factory Rocker Arm Ratio: 0.657 int.\/0.640 exh. \u003c\/div\u003e\n\u003cdiv\u003eLobe Separation (degrees): 112 \u003c\/div\u003e\n\u003cdiv\u003eCamshaft Gear Attachmen 3-bolt \u003c\/div\u003e\n\u003cdiv\u003eComputer-Controlled Compatible: No \u003c\/div\u003e\n\u003cdiv\u003eValve Springs Required: Yes \u003c\/div\u003e\n\u003cdiv\u003eCamshaft Manufacturers Description: Lopey idle, Hot Street\/bracket in larger cu. in., 11.0+ compression ratio, good heads. 3,500+ stall, OK with nitrous oxide. \u003c\/div\u003e\n\u003cdiv\u003eQuantity: Sold individually. \u003c\/div\u003e\n\u003cdiv\u003eNotes: Retrofit roller cam for engines that did not originally come with a roller cam.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"Howards Cams","offers":[{"title":"Default Title","offer_id":44642579480887,"sku":"HC123335-12","price":815.8,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/84414.jpg?v=1780362746","url":"https:\/\/enginemaster.com.au\/products\/howards-cams-hc123335-12-retro-fit-hyd-roller-cam-253-259-50-chev-bb-396-454","provider":"Engine Master","version":"1.0","type":"link"}