We are also a finalist in the (PHR) Engine Master Challenge with one of these combos 659 hp, 625 ft lbs. roller or solid mechanical cam, AS SEEN IN The GTO Tiger 10.80's 3700+lbs., street legal. If camshafts and lifters do not meet your level of satisfaction, DO NOT INSTALL! Returns only accepted if camshafts and lifters has not been installed. Pump gas, street-strip combos include 400-428-455 block, 92+ octane, hyd. Customer has the privilege of checking and inspecting camshafts and lifters at the time of installation. There is no guarantee on camshafts and lifters after engine is started. NOTE: Anytime you install a new camshaft, it should always have new lifters installed as cams and lifters create a wear pattern as they mate together.Ĭamshafts and lifters are guaranteed to be straight, on size, and to correct lift, index and duration.

Compression Ratio: 10.3:1 or less check valve to piston clearance.Transmission: STOCK AUTOMATIC OR MANUAL.Computer Controlled Vehicles: Modified computer chip may be required to compensate for low vacuum.Lobe Separation: Intake: 106 Exhaust: 118 Xtreme Energy 240/246 Hydraulic Flat Cam for Pontiac 265-455.Advertised Duration: Intake:288 Exhaust: 298.

313 Intake/.313 Exhaust Lobe Separation Angle, 113.5 Intake Centerline, 112. In my opinion, the most important factors in selecting the optimum CR is the deck height, the cam timing, the shape and finish of the combustion chamber and pistons, the operating rpm range, and of course, the fuel available. Edelbrock Performer RPM Camshaft Kit for Pontiac 350-455 Lift Cam. You are buying a BRAND NEW Engine Pro MC1130 Hydraulic Flat Tappet Camshaft! Also included is a SET of (16) HA951 Lifters!

Pontiac 350 cam selection