4-Pattern 253/263 IB, 255/265 OB Hydraulic Roller Cam for Ford 351W
Application: Fits Ford Small Block Engines originally equipped with "Old" firing order and 351 Windsor engines with the "Windsor" firing order
Recommended in larger c.i. and high compression applications. 3500+ Stall.
Hydraulic Roller: 4-Pattern 305QIO8 - Recommended for larger c.i.d. and high compression applications. 3500+ Stall.
- Technology developed and race-proven in NASCAR.
- Feature a large increase in both area under the curve and stability at high RPM.
- Optimize valve events based on runner length.
- Feature a large increase in both area under the curve and stability at high RPM.
- Technology developed and race-proven in NASCAR.
- Feature four lobe patterns, one intake and exhaust design for outboard runners and another intake and exhaust design for inboard runners.
- Optimize valve events based on runner length.
