COMP Cams Thumpr Hydraulic Roller Camshaft SBC 87-98 227/ 241 W/ GK-Kit

This camshaft (GK08-600-8) adds aggressive performance and sound to your Chevy small block. It combines a 227/241 Thumpr camshaft with a gear drive system and lifters for maximum durability. Operating in the 1,900-5,600 RPM range, it delivers a choppy, thumping idle while significantly improving throttle response and street power. The included camshaft gear drive kit eliminates timing chain stretch for more accurate valve timing.

Features and Benefits:
- Thumpr hydraulic roller camshaft and lifter kit
- Includes camshaft gear drive kit
- 227/241 duration at .050” lift
- Choppy, thumping idle note
- Works with stock converter, best with 2,000+ stall
- Great for street builds with aftermarket intakes and headers
- Improves throttle response and power

Specifications:
- RPM operating range: 1,900-5,600
- Cam/lifter type: hydraulic roller
- Camshaft series: Thumpr
- Camshaft gear attachment: 3-bolt
- Advertised intake/exhaust duration: 283 and 303
- Intake/exhaust duration at .050” lift: 227 and 241
- Intake/exhaust valve lift: 0.513 and 0.498
- Lobe separation: 107

Vehicle Fitment:
- 1987-1998 Small Block Chevy V8 Roller 305-350ci Engines