COMP Cams · New
Comp Cams Camshaft, Ol 291Th R7 Thumpr
MPN 42-601-11 · Store SKU cca42-601-11
Supplier stock checked 11/8/2026, 4:09:39 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Mutha' Thumpr 235/249 Hydraulic Roller Cam for Oldsmobile 260-455 Mutha' Thumpr 235/249 Hydraulic Roller Cam
Manufacturer fitment & guides
- Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y