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  • Oldsmobile 400 425 455 188cc 77cc Aluminum Bare Cylinder Head

Oldsmobile 400 425 455 188cc 77cc Aluminum Bare Cylinder Head

SKU: PCE281.1740

All Speedmaster 18deg. Oldsmobile heads are available with OEM sparkplug location. Standard valve sizes are 2.072 in. Intake and 1.680 in. Exhaust.


Part Number:PCE281.1740
Part Type:Cylinder Heads
Cylinder Head Style:Bare
Cylinder Head Material:Aluminum
Cylinder Head Finish:Natural
Combustion Chamber Volume (cc):77 cc
CNC-Machined Combustion Chamber:No
Intake Runner Volume (cc):188 cc
Exhaust Runner Volume (cc):n/a
CNC-Machined Intake Runner:No
CNC-Machined Exhaust Runner:No
Intake Port Shape:Rectangular
Intake Port Location:Standard
Exhaust Port Shape:Square
Exhaust Port Location:Standard
Spark Plug Style:OEM
Comp. Valve Job:No
Intake Valves Included:No
Intake Valve Diameter (in):2.072 in.
Exhaust Valves Included:No
Exhaust Valve Diameter (in):1.680 in.
Valve Springs Included:No
Maximum Valve Diameter (in):0.615 in.
Outside Diameter of Outer Spring (in):1.450 in.
Damper Spring Included:No
Retainers Included:No
Locks Included:No
Valve Stem Seals Included:No
Rocker Arm Studs Included:No
Rocker Arms Included:No
Rocker Arm Nuts Included:No
Guideplates Included:No
Valve Cover Mounting Style:Center & Perimeter Bolt
Accessory Bolt Holes Drilled:Yes
Intake Valve Angle:18 deg.
Exhaust Valve Angle:18 deg.
Valve Guides Included:Yes
Valve Guide Material:Bronze
Valve Seats Machined:Yes
Valve Seat Machine Style:3-angle
Valve Seat Material:Ductile iron
Steam Holes Drilled:No
Oiling Style:Through pushrod
Machined for O-Ring:No
Heat Crossover:No
Quantity:Sold Individually
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