Comp Cams 11-602-4 BBC Big Block Chevy Big Mutha Thumpr™ Cam Thumpr Very Rough
HYDRAULIC-Thumpr™ Street/Strip needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
DETAILS:
RPM OPERATING RANGE; 2300 to 6200
CAM GRIND# 295TH7
DURATION:
Advertised
IN. 295 EX.312
@ .50"
IN. 243
EX. 257
Valve Lift:
IN. .522
EX. 507
Lobe Sep. Angle:
107°
LIFTERS:
2110
3110
Gear Drive:
4110
ROCKER ARMS:
1411-16*
1620-16*
*Mark V & Mark VI heads must use kit with/studs
50 state legal for 1993 legal for 1993 & earlier BB Chevrolet V8, 396-454ci C.A.R.B. E.O. # D-279-4
*Mark V & Mark VI heads must use kit with/studs
50 state legal for 1993 legal for 1993 & earlier BB Chevrolet V8, 396-454ci C.A.R.B. E.O. # D-279-4
PUSHRODS:
7154-16*
7954-16*
*Truck engines have .400" taller block.
*Truck engines have .400" taller block.
VALVE SPRINGS:
924-16*
26120-16
*Requires machining on cylinder heads
RETAINERS:
741-16
795-16
VALVE LOCKS:
612-16*
616-16*
*Most aluminum heads come standard with 11/32" valve stems. Use appropriate valve locks, retainers, and seals.
*Most aluminum heads come standard with 11/32" valve stems. Use appropriate valve locks, retainers, and seals.
VALVE SEALS:
505-16*
*Requires machining on cylinder heads
