Drag Race 4/7 Swap 285/300 Solid Roller Cam for Chevrolet Big Block 396-454, MECHANICAL ROLLER-Large comp eliminator with high ratio & fast bracket 1.8 & 1.7. BBC - 1965-66 396 c.i. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models.
- Cam Style:
- Mechanical Roller Tappet
- Basic Operating RPM Range:
- 5,000-9,000
- Intake Duration at .050 inch Lift:
- 285
- Exhaust Duration at .050 inch Lift:
- 300
- Duration at .050 inch Lift:
- 285 int./300 exh.
- Advertised Intake Duration:
- 318
- Advertised Exhaust Duration:
- 338
- Advertised Duration:
- 318 int./338 exh.
- Intake Valve Lift with Factory Rocker Arm Ratio:
- 0.824 in.
- Exhaust Valve Lift with Factory Rocker Arm Ratio:
- 0.800 in.
- Valve Lift with Factory Rocker Arm Ratio:
- 0.824 int./0.800 exh.
- Lobe Separation (degrees):
- 114
- Computer-Controlled Compatible:
- No
- Material:
- Billet Steel
- Camshaft Gear Attachment:
- 3-bolt
- Valve Springs Required:
- Yes
- Grind Number:
- 47S 318RXD-14
- Hot Lash:
- 0.024 in. int./0.026 in. exh.
- Camshaft Usage:
- Drag race
- Camshaft Manufacturers Description:
- Mechanical Roller - Drag Race 4 & 7 Swap: Large cubic inch Quick 16, Eliminator w/ high ratio rockers & Fast Bracket, 1.8 & 1.7.
- Quantity:
- Sold individually.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 6.5L396-7.4L/454
- Years:
- 1967-1990
- Engine Family:
- Chevy big block Gen V
- Engine Sizes:
- 7.4L/454
- Years:
- 1991-1995
