Drag Race 246/253 Hydraulic Flat Cam for Chevrolet Small Block

out of stock
SKU
12-342-4
TEMPORARILY OUT OF STOCK, ORDER NOW!
$264.95
  • For Hydraulic Flat Tappet Lifters; Fits '58-'021 262-400 cid Chevy Small Blocks2

  • 10.5:1+ compression • 3500+ stall • Good torque


1: Cams for '55-'57 engines can be custom ordered. Please Call, Email, Twitter or Live Chat for details.

2: The '87+ Chevy Small Block received provisions for roller lifters. Most '87 - '93 GM cars came with roller lifters, but most '87 - '95 trucks came with flat tappet lifters in roller lifter style blocks. If a roller cam is desired and your block has OEM-style roller cam provisions. COMP Hyd. Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased, as well as a '87+ OE-Style Hyd. Roller Cam and '87+ OE-Style Roller Lifters. Roller cam conversion in pre-'87 blocks requires Retro-Fit Hyd. Roller Cam and Retro-Fit Link Bar Lifters.

Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range: 3,000-6800
Grind Number: 296AH-8
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Drag Race
Usage: Strip
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: 0.51
Exhaust Valve Lift: 0.507
Lobe Lift Intake: 0.341
Lobe Lift Exhaust: 0.339
Lobe Separation: 108
Intake Centerline: 108
Exhaust Close ATDC: 44
Intake Open BTDC: 40
Exhaust Open BBDC: 81
Intake Close ABDC: 76
Camshaft Gear Attachment: 3-Bolt
Component Part Number
Break-In Lube: 159
Lifter Kit: 858-16
Steel Retainers: 740-16  /   795-16
Timing Set: 3100  /   3100KT
Valve Locks: 611-16  /   614-16
Valve Seals: 503-16
Valve Springs: 986-16  /   26986-16