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Home > Thumpr™ Cams > Chevy
Big Mutha' Thumpr™ 299THR7; 2500 to 6500 RPM Range
Big Mutha' Thumpr™ 299THR7; 2500 to 6500 RPM Range
Product Representation: Actual part may vary based on configuration ordered.
Part: 12-602-8
Price: $316.04
Weight: 8.64 lbs FREE SHIPPING OVER $50!
  • For Retro-Fit (Link Bar) Hydraulic Roller Lifters; Fits '58-'021 262-400 cid Chevy Small Blocks2

  • Street/strip • Needs 9.5:1 compression, 2800+ stall, intake, gears & headers • Very rough idle

  • Optimize engine character & sound, while providing excellent valvetrain stability & a wide power range

Click for Cam Specs, Recommended Components & Application Notes

1: Cams for '55-'57 engines can be custom ordered. Please Call, Email, Twitter or Live Chat for details.

2: The '87+ Chevy Small Block received provisions for roller lifters. Most '87 - '93 GM cars came with roller lifters, but most '87 - '95 trucks came with flat tappet lifters in roller lifter style blocks. If your block has '87+ OEM-style roller cam provisions but does not have roller components fitted, COMP Hyd. Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased. As well as a '87+ OE-Style COMP Hyd. Roller Cam and '87+ OE-Style COMP Roller Lifters. Pre-'87 blocks require Retro-Fit Link Bar Roller Lifters.