Speedmaster®
Chevy SBC 350 175cc 59cc Straight Hydraulic Flat Assembled Cylinder Heads
Specs
| Brand: | Speedmaster |
| Part Number: | PCE281.2158 |
| Part Type: | Cylinder Heads |
| Cylinder Head Style: | Assembled |
| Cylinder Head Material: | Cast Iron |
| Cylinder Head Finish: | Natural |
| Combustion Chamber Volume (cc): | 59 cc |
| CNC-Machined Combustion Chamber: | No |
| Intake Runner Volume (cc): | 175 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: | Straight |
| Comp. Valve Job: | No |
| Intake Valves Included: | Yes |
| Intake Valve Diameter (in): | 1.940 in. |
| Exhaust Valves Included: | Yes |
| Exhaust Valve Diameter (in): | 1.500 in. |
| Valve Springs Included: | Yes |
| Maximum Valve Lift (in): | 0.580 in. |
| Outside Diameter of Outer Spring (in): | 1.250 in. |
| Number of Springs Per Valve: | Single |
| Damper Spring Included: | Yes |
| Retainers Included: | Yes |
| Retainer Material: | Chromoly steel |
| Locks Included: | Yes |
| Lock Style: | 7 degree |
| Valve Stem Seals Included: | Yes |
| Rocker Arm Studs Included: | NoÊ |
| Rocker Arms Included: | NoÊ |
| Rocker Arm Nuts Included: | NoÊ |
| Guideplates Included: | NoÊ |
| Valve Cover Mounting Style: | Center & Perimeter Bolt |
| Accessory Bolt Holes Drilled: | YesÊ |
| Intake Valve Angle: | 23 deg. |
| Exhaust Valve Angle: | 23 deg. |
| Valve Guides Included: | YesÊ |
| Valve Guide Material: | BronzeÊ |
| Valve Seats Machined: | Yes |
| Valve Seat Machine Style: | 3-angle |
| Valve Seat Material: | Ductile ironÊ |
| Steam Holes Drilled: | No |
| Oiling Style: | Through pushrodÊ |
| Machined for O-Ring: | NoÊ |
| Heat Crossover: | No |
| Quantity: | Sold as a pair. |
| Calculator | Compression Calculator |
Description
Assembly Specifications
Max Lift: .520"
Coil Bind: 1.080"
Intake Install: 125lbs @ 1.750
Exhaust Install: 125lbs @ 1.750
Closed Sear Pressure: 125lbs
Open Seat Pressure: 335lbs
Brand Information
In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which entails more than 400+ people all across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster: which has distribution centres and offices is Sydney, Los Angeles and Shanghai.
Prop 65 Warning
Ratings & Reviews
4 Reviews
peter d mason - | 03/01/2019 0:46:00
Just As Described.
Just As Described.
Wayne Dennis - | 11/02/2019 19:58:00
Wow, Quality Part, Always Pleased With Service, Great Seller, Wow !
Wow, Quality Part, Always Pleased With Service, Great Seller, Wow !
TIMOTHY ESMOND - | 01/28/2019 17:48:00
I'Ve Bought 3 Sets Of These Heads. All 3 Were 63Cc Combustion Chamber. Good Deal
I'Ve Bought 3 Sets Of These Heads. All 3 Were 63Cc Combustion Chamber. Good Deal
Matthew Boggess - | 03/19/2019 12:50:00
Looks Good. Fast Delivery
Looks Good. Fast Delivery