Drag Race 246/253 Hydraulic Flat Cam for Pontiac 265-455

HYDRAULIC: Rough idle, 3500-4000 stall, 10:1 compression, 4.10 or lower gear ratio.

SKU
51-316-4
$209.97
Grind Number: 296AH-8
Engine Family: Pontiac 265-455 c.i. 8 Cyl. (1955-1981)
RPM Operating Range: 3,000-6,000
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Drag Race
Camshaft Gear Attachment: 1-Bolt
Usage: Street/Strip
Valve Springs Required: Yes
Camshaft Material: Cast Iron
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 296
Advertised Exhaust Duration: 305
Intake Duration at .050 Inch Lift: 246
Exhaust Duration at .050 Inch Lift: 253
Intake Valve Lift: 0.562
Exhaust Valve Lift: 0.577
Lobe Separation: 108
Assembly Lubricant Included: Yes
Intake Centerline: 108
Lobe Lift Intake: 0.341
Lobe Lift Exhaust: 0.35
Valve Timing @ 0.006 Lift:
Exhaust Close ATDC: 44
Exhaust Open BBDC: 81
spec-card-valve-timing
Intake Open BTDC: 40
Intake Close ABDC: 76
Component Part Number
Break-In Lube: 159
Lash Caps: 621-16
Lifter Kit: 863-16
Rocker Arms: 1452-16
Steel Retainers: 730-16  /   740-16
Stud Girdle: 4051
Timing Set: 3112
Valve Locks: 611-16
Valve Seals: 503-16
Valve Springs: 995-16