COMP Cams · New
COMP Cams Camshaft OL 295T H-107 T Thumper
MPN 42-602-5 · Store SKU cca42-602-5
$325.95
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Supplier stock checked 11/8/2026, 7:27:17 AM UTC. Adding a part does not reserve it.
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Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Oldsmobile 260-455. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Oldsmobile 260-455
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
