Drag Race 4/7 Swap 279/286 Solid Roller Cam for Chevrolet Small Block, MECHANICAL ROLLER-400 c.i.+ engines, good heads, high compression, 0.900 base circle. SBC - 1955-57 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:
- 5,000-7,500
- Intake Duration at .050 inch Lift:
- 279
- Exhaust Duration at .050 inch Lift:
- 286
- Duration at .050 inch Lift:
- 279 int./286 exh.
- Advertised Intake Duration:
- 312
- Advertised Exhaust Duration:
- 325
- Advertised Duration:
- 312 int./325 exh.
- Intake Valve Lift with Factory Rocker Arm Ratio:
- 0.679 in.
- Exhaust Valve Lift with Factory Rocker Arm Ratio:
- 0.645 in.
- Valve Lift with Factory Rocker Arm Ratio:
- 0.679 int./0.645 exh.
- Lobe Separation (degrees):
- 108
- Computer-Controlled Compatible:
- No
- Material:
- Billet Steel
- Camshaft Gear Attachment:
- 3-bolt
- Valve Springs Required:
- Yes
- Grind Number:
- 47S 312R-8
- Hot Lash:
- 0.024 in. int./0.026 in. exh.
- Camshaft Usage:
- Drag race
- Camshaft Manufacturers Description:
- Mechanical Roller - Drag Race 4 & 7 Swap: 400+ c.i. engines, good heads, high compression, .900\" base circle.";"Quantity=Sold individually.";"Make=Chevrolet";"Engine Family=Chevy small block Gen I";"Engine Sizes=4.3L/262-6.6L/400";"Years=1958-1995
