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Engine Bearings Camshafts Valvetrain Parts GM LS / LT Parts Hemi Parts Comp Cams Big Mutha Thumpr Hyd Camshaft & Lifters Kit for Chevrolet BBC 396 454 Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Big Block 396-454 Thumpr™ 243/257 Hydraulic Flat Cam for Chevrolet Big Block 396-454. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. *BBC 1965-66 396 c.i. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models. Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) RPM Operating Range: 2,300-6,200 Grind Number: 295TH7 Cam Type: Hydraulic Flat Tappet Lifter Style: Hydraulic Flat Tappet Camshaft Series: Thumpr Usage: Street/Strip California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Advertised Intake Duration: 295 Advertised Exhaust Duration: 313 Intake Duration at .050 Inch Lift: 243 Exhaust Duration at .050 Inch Lift: 257 Intake Valve Lift: 0.522 Exhaust Valve Lift: 0.507 Lobe Separation: 107 Exhaust Close ATDC: 49 Intake Open BTDC: 44 Exhaust Open BBDC: 84 Intake Close ABDC: 71 Camshaft Gear Attachment: 3-Bolt Performance Part: Yes Interchange Part Number: choppy lopey idle, big block chevy, hp hyd hydraulic cam California Prop 65 Warning: Cancer and Reproductive Harm P65warnings.CA.Gov Type: Camshaft Other Part Number: 11-602-4 Fitment Type: Performance/Custom MPN: CL116024 Manufacturer Part Number: CL11-602-4 Universal Fitment: No Brand: Comp Cams Manufacturer Warranty: Unspecified Length Items Included: Lifters Shipping Items are shipped within 24 hours of purchase Monday-Friday. Payments We accept all major credit cards Returns Returns can be opened via ebay within 30 days of purchase date. Comp Cams K51-433-11 Camshaft K-Kit XR288HR-10 for Pontiac V8 $1,390.95 Brian Tooley BTR .660" Platinum Dual Valve Spring Kit - LS 4.8 5.3 5.7 6.0 6.2 $239.98 Updated Stock Pushrods Set for 2003-2010 Ford Powerstroke Diesel 6.0L 6.4L $79.00 COMP Cams 12-242-2 Xtreme Energy 268H Hyd Camshaft for Chevrolet SBC 305 350 5.7 $149.99 Stage 2 HP Camshaft Kit for 1987-1995 Chevrolet TBI 350 5.7L 420/433 Lift $359.98 Complete Stock NON MDS Camshaft Kit for 2009+ Dodge Durango Ram 5.7L Hemi Engine $739.98 Stage 3 HP RV Camshaft Lifters Timing Chain Set - Chevrolet SBC 350 443/465 Lift $219.99 Stage 2 HP RV Hyd Camshaft Lifters Timing Set for Chevrolet SBC 350 420/433 Lift $209.98 GM Chevrolet 12672469 L8T Camshaft for 2014+ L83 Gen V 5.3 Remove DOD AFM $170.27 Cam Motion Titan 5 LS1 Camshaft (232/238-113+4) .621/.604 $399.00 AEM Black Tru-Time Cam Gear for 90-91 Acura Interga / 99-00 Honda Civic Si $124.95 AEM 23-831BK Black Tru-Time Cam Gear for Evo 8 & IX $188.95 Brian Tooley Racing BTR 3 Bolt Stage 2 NSR LS Truck Cam Kit - 4.8 5.3 6.0 $309.99 Brian Tooley Truck BTR Camshaft Install Kit w/ Lifters Trays Pushrods Gaskets $709.98