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Product Discontinued
SPEEDMASTERPART NUMBER: 746-PCE281.2152P
Speedmaster Big Block Oldsmobile 400/425/455 Cast Aluminum Cylinder Heads & Free Shootout Intake Manifold Promo
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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Big Block Oldsmobile 400/425/455
Cast Aluminum Cylinder Heads
Includes Free Shootout Intake ManifoldBig Block Oldsmobile 400/425/455 w/Hydraulic Flat Tappet Cam Assembled Head 77cc Combustion Chamber 188cc Intake Runner Standard Plug Includes Valves & Spring
Includes Free Shootout Intake Manifold
Included Components:
- Speedmaster Cast Aluminum Cylinder Head -- PCE281.2152
- Speedmaster Shootout Intake Manifold -- 746-PCE147.1107
Cylinder Head Specifications:
- Intake Runner: 188cc
- Combustion Chamber Volume: 77cc
- Intake Valve: 2.072"
- Exhaust Valve: 1.680"
- Max Lift: .615"
- Coil Bind: 1.125"
- Intake Install: 140 lbs @ 1.8
- Exhaust Install: 140 lbs @ 1.8
- Closed Sear Pressure: 145 lbs
- Open Seat Pressure: 345 lbs
Intake Manifold Specifications:
- Big Block Oldsmobile 400/425/455
- Height: 8.200 in.
- Single Plane
- Non-EGR
- RPM Range: 4,500-7,500
- Natural Finish
Part TypeCylinder Head
BrandSPEEDMASTER
Part CategoryPerformance Parts
Vendor Part NumberPCE281.2152-PROMO
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
