Chevy BBC 427 454 HP Stage 4 527/553 Lift Cam Camshaft & Lifters Kit MC2305.
Engine Pro MC2305 Hydraulic Flat Tappet Camshaft! Also included is a SET of (16) HA817 Lifters!
This is for CHEVROLET Big Block V8 1967-95 396, 402, 427, 454 C.I. / 1969-90 366 C.I. (CHAIN DRIVE) engines.
Camshaft Specifications:
- Stage: 4
- Duration @ .050": Intake: 224 Exhaust: 232
- Advertised Duration: Intake:302 Exhaust: 304
- Valve Lift: Intake: .527 Exhaust: .553
- Lobe Separation: Intake: 110 Exhaust: 118
- Power Range: 2500-6000
- Idle: Rough
- Lifter Part #: 817
- Comment:HIGH PERFORMANCE STREET, STRONG MID-RANGE MAY REQUIRE CONVERSION TO AN ADJUSTABLE VALVE TRAIN
General Stage 4 Camshaft Specifications:
- Idle Quality: ROUGH. Manifold vacuum will not operate power brakes.
- Torque: Mid range 3000-4000 RPM
- Fuel Economy: Poor
Recommendations:
- Towing: Not recommended
- Racing: Bracket drag racing, limited oval track
- Computer Controlled Vehicles: Not recommended
- Transmission: Automatic with high stall converter or heavy duty manual
- Compression Ratio: 10.5:1 to 11.0:1. Check valve to piston clearance
