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COMP Cams Thumpr 235/249 Retro-Fit Hydraulic Roller Complete Kit For Oldsmobile 260-455

COMP Cams · New

COMP Cams Thumpr 235/249 Retro-Fit Hydraulic Roller Complete Kit For Oldsmobile 260-455

MPN K42-601-11 · Store SKU ccaK42-601-11

$1,534.95
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Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.

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Product details

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Mutha' Thumpr 235/249 Hydraulic Roller K-Kit 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

Manufacturer documents

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