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COMP Cams

Big Mutha' Thumpr 242/257 Hydraulic Flat Cam For Oldsmobile 260-455

Big Mutha' Thumpr 242/257 Hydraulic Flat Cam For Oldsmobile 260-455

BDQQ-42-602-5

COMP Cams

$325.95 USD
$325.95 USD $325.95 USD
Sale Sold out
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. Vehicle Specific
  • Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8
  • Brand Name: COMP Cams
  • GTIN: 00036584213208
  • Advertised Exhaust Duration: 312
  • Advertised Intake Duration: 294
  • Amazon ASIN: B005H89WWW
  • Assembly Lubricant Included: Yes
  • Basic Operating RPM Range: 2,500-6,400
  • C.A.R.B. E.O. Number: N/A
  • C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
  • C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
  • C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
  • C.A.R.B. Exempt for On-Road Vehicles?: No
  • C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
  • C.A.R.B. Exemption Reason: N/A
  • Cam Type: Hydraulic Flat Tappet
  • Cam and Lifter Kit Upgrade: CL42-602-5
  • Camshaft Gear Attachment: 1-Bolt
  • Camshaft Material: Cast Iron
  • Camshaft Series: Thumpr
  • Engine Family: Oldsmobile 260-455 c.i. 8 Cylinder (1967-1990)
  • Exhaust Duration at .050 inch Lift: 257
  • Exhaust Valve Lift: 0.497
  • Grind Number: 295TH7
  • Intake Duration at .050 Inch Lift: 242
  • Intake Valve Lift: 0.512
  • K-Kit Upgrade: K42-602-5
  • Lifter Type: Hydraulic Flat Tappet
  • Lifters Included: No
  • Lobe Separation: 107
  • Usage: Street/Strip
  • Valve Springs Required: Yes
  • Country of Origin: United States
  • Emissions : EPA Eligible
  • Quantity of Each: 1
  • Package UOM: EA
  • Dimension: 24.5 x 3 x 2.75 inches
  • Weight: 9.91 POUNDS
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