PCE281.2170 Aluminum Cylinder Heads for Oldsmobile 400, 425, 455 ci. Engines w/Hydraulic Roller Cam

Name: PCE281.2170 Aluminum Cylinder Heads for Oldsmobile 400, 425, 455 ci. Engines w/Hydraulic Roller Cam
Brand: SPEEDMASTER
SKU: 746-PCE2812170
Price: 1310.00 USD
Availability: InStock

^$1,310⁰⁰

Ships on 09/15/2026

Lowest Price Guarantee

Oldsmobile

Aluminum Cylinder Heads

Oldsmobile 400, 425, 455 ci.

Fully-Assembled

Valve Springs for Hydraulic Roller Cam

Combustion Chamber Volume: 77 cc

Intake Runner Volume: 188 cc

Intake Valves: 2.072 in.

Exhaust Valves: 1.680 in.

Pair

Speedmaster PCE281.2170 Valve Spring Specifications:

Max Lift: .615 in.
Coil Bind: .1.125 in.
VBalve Spring Installed Height: 140lbs @ 1.800 in.
Closed Seat Pressure: 145 lbs.
Open Seat Pressure: 345 lbs.

Speedmaster PCE281.2170 Cylinder Heads Specifications:

Cylinder Head Style: Assembled
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
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: Yes
Intake Valve Diameter (in): 2.072 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.680 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.615 in.
Outside Diameter of Outer Spring (in): 1.450 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromoly steel
Locks Included: Yes
Lock Style: 10 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Positive stop
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 as a pair.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeCylinder Head

BrandSPEEDMASTER

Package Height5.5

Package Width9.5

Package Length24.0

Weight63.7 PG

Part CategoryPerformance Parts

Cylinder Head MaterialAluminum

Intake Valves IncludedYes

QuantityPair

Intake Valve Diameter2.072 in.