Speedmaster®
SKU:PCE281.2170
Oldsmobile 400 425 455 188cc 77cc Hydraulic Roller Assembled Cylinder Heads
Oldsmobile 400 425 455 188cc 77cc Hydraulic Roller Assembled Cylinder Heads
Regular price
$1,105.00 USD
Regular price
$1,300.00 USD
Sale price
$1,105.00 USD
Low stock
Quantity
Couldn't load pickup availability
- Item Condition: Brand New
- Ships within 5 days
- 12-Month Limited Worldwide Warranty
Information
Specifications
| Brand: | Speedmaster |
| Part Number: | PCE281.2170 |
| Part Type: | Cylinder Head [Assembled] |
| Product Line: | Hydraulic Roller Tappet |
| 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 |
| 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: | 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. |
Assembly Specifications
Max Lift: .615
Coil Bind: .1.125
Intake Install: 140lbs @ 1.8
Exhaust Install: 140lbs @ 1.8
Closed Seat Pressure: 145lbs
Open Seat Pressure: 345lbs