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Magnum 253/253 Hydraulic Flat Cam for Oldsmobile 260-455
HYDRAULIC: Pro street / bracket Race cam, good for large engines with 3500 stall and low gears. Radical idle.
In stock
SKU
42-237-4
$273.95
Engine Family: Oldsmobile 260-455 c.i. 8 Cylinder (1967-1990)
RPM Operating Range: 3,000-6800
Grind Number: 305H
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Magnum
Usage: Street/Strip
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 305
Advertised Exhaust Duration: 305
Intake Duration at .050 Inch Lift: 253
Exhaust Duration at .050 Inch Lift: 253
Intake Valve Lift: 0.54
Exhaust Valve Lift: 0.54
Lobe Lift Intake: 0.339
Lobe Lift Exhaust: 0.339
Lobe Separation: 110
Intake Centerline: 110
Exhaust Close ATDC: 43
Intake Open BTDC: 43
Exhaust Open BBDC: 82
Intake Close ABDC: 82
Camshaft Gear Attachment: 1-Bolt
Component
Part Number
CL-Kit Upgrade: CL42-237-4
K-Kit Upgrade: K42-237-4
SK-Kit Upgrade: SK42-237-4