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Thumpr Hydraulic Roller Camshaft <br> 87-98 Small Block Chevy 305-350 V8 OE Roller
COMP CAMS
®

Thumpr Hydraulic Roller Camshaft
87-98 Small Block Chevy 305-350 V8 OE Roller

SKU: CCA-08-601-8
$549.95

Availability: Out Of Stock

Compatibility
Specification
Product Description Reviews
Description:

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.

Features:

  • Camshaft Series: Thumpr
  • Lobe Separation: 107 DD
  • Intake Valve Lift: 0.522 IN
  • Exhaust Valve Lift: 0.509 IN
  • Lifters Included: No
  • Valve Springs Required: Yes
  • Assembly Lubricant Included: No
  • Camshaft Gear Attachment: 3-Bolt
  • Camshaft Material: Austempered Ductile Iron
  • Engine Family: Chevrolet 305-350 c.i. 8 Cylinder O.E. Roller (1987-1998)
  • Cam, Lifter and Gear Drive Upgrade: GK08-601-8
  • Usage: Street/Strip
  • Cam and Lifter Kit Upgrade: CL08-601-8
  • K-Kit Upgrade: K08-601-8
  • Lifter Type: Hydraulic Roller
  • Cam Type: Hydraulic Roller
  • Grind Number: 291THR7
  • Grind Number: 291THR7
  • Basic Operating RPM Range: 1,900-5,600
  • Intake Duration at .050 Inch Lift: 235 DD
  • Exhaust Duration at .050 inch Lift: 249 DD
  • Advertised Intake Duration: 291 DD
  • Advertised Exhaust Duration: 311 DD


  • Package Includes:

  • Engine Camshaft


  • Compatible With:

  • 1987-1991 Avanti II
  • 1987 Buick Regal
  • 1991-1993 Buick Roadmaster
  • 1991-1996 Buick Commercial Chassis
  • 1993 Cadillac Fleetwood
  • 1990-1992 Cadillac Brougham
  • 1992-1996 Cadillac Commercial Chassis
  • 1987-1994 Chevrolet Blazer Suburban
  • 1988-1995 Chevrolet C1500 C2500 C3500 K1500 K2500 K3500
  • 1992-1995 Chevrolet C1500 Suburban C2500 Suburban K1500 Suburban K2500 Suburban
  • 1987-1992 Chevrolet Camaro
  • 1987-1993 Chevrolet Caprice
  • 1987-1991 Chevrolet Corvette
  • 1987-1995 Chevrolet G20 G10
  • 1987-1996 Chevrolet G30
  • 1998 Chevrolet Express 3500 Express 1500
  • 1987-1989 Chevrolet P20
  • 1987-1998 Chevrolet P30 C35
  • 1987 Chevrolet R10 V10 V20 C20 El Camino
  • 1987-1988 Chevrolet R10 Suburban R20 R20 Suburban R30 V10 Suburban V20 Suburban V30 Monte Carlo
  • 1989-1991 Chevrolet R1500 Suburban R2500 Suburban R3500 V1500 Suburban V2500 Suburban V3500
  • 1995 Chevrolet Tahoe
  • 1988-1995 GMC C2500 C3500 K1500 K2500 K3500 C1500
  • 1992-1995 GMC C2500 Suburban K1500 Suburban K2500 Suburban Yukon C1500 Suburban
  • 1987 GMC Caballero R1500 V1500 V2500
  • 1987-1995 GMC G1500 G2500
  • 1987-1989 GMC P2500 R2500
  • 1987-1996 GMC P3500 G3500
  • 1987-1991 GMC R1500 Suburban R2500 Suburban R3500 V1500 Suburban V2500 Suburban V3500 Jimmy
  • 1987 Pontiac Grand Prix
  • 1995-1998 Chevrolet Suburban 1500 Silverado
  • 1996 Chevrolet Express 2500
  • 1987-1992 Pontiac Firebird
  • 1991-1992 Oldsmobile Custom Cruiser
  • 1991-1994 Chevrolet Commercial Chassis
  • 1997-1998 Chevrolet Cargo Van
  • 1993 Excalibur Limited
  • 1987-1989 Excalibur Phaeton


  • WARNING: This product contains chemicals known to the State. For more information go to https://www.p65warnings.ca.gov/