COMP Cams 11-601-4 Mutha Thumpr 287TH7 Flat Tappet Hyd. Camshaft for Chevrolet Big Block 396 - 454 EnginesThumpr 235 249 Hydraulic Flat Cam for Chevrolet Big Block 396 454 High performance street strip, needs 9: 1 compression, 2500+ stall, intake, gears and headers, rough idle.

8-degree maximum advance/retard

Oldsmobile V8 260-455

• 3 keyway crank sprocket for additional 4-degree incremental adjustability

4-bolt throttle body

3L OHV V8 High Perf

Advertised Exhaust Duration: 292

Category Part # Sizes

Clevite or King race main and rod bearings

Chevrolet Gen V LT1 aluminum block (4

and hex nuts

with Factory Aluminum Heads

Rough idle