-40%
Oldsmobile 400 425 455 188cc 77cc Aluminum Bare Cylinder Head
$ 237.6
- Description
- Size Guide
Description
Oldsmobile 400 425 455 188cc 77cc Aluminum Bare Cylinder HeadPCE281.1740
Brand:
Speedmaster
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
Calculator
Compression Calculator
All Speedmaster 18deg. Oldsmobile heads are available with OEM sparkplug location. Standard valve sizes are 2.072 in. Intake and 1.680 in. Exhaust.
INTAKE GASKETS:
Our heads are manufactured with both the conventional intake manifolds. PCE349.1011
EXHAUST GASKETS:
We recomend the use of our Exhaust gaskets, PCE355.1001, on our 18 degree heads.
PUSH RODS:
Our aluminum 18deg. heads typically use +.100" (longer than stock) pushrods. Depending on the components used, it maybe that possible that you may need pushrods shorter or longer than that so we recommend that you use an adjustable pushrod to dial in your rocker geometry and order pushrods to match.