Ford SB 289 302 351 Windsor 227cc 64cc CNC Solid Roller Assembled Cylinder Heads

Description

PCE281.2054
Brand:
Speedmaster
Part Number:
PCE281.2054
Part Type:
Cylinder Heads
Cylinder Head Style:
Assembled
Cylinder Head Material:
Aluminum
Cylinder Head Finish:
Natural
Combustion Chamber Volume (cc):
64 cc
CNC-Machined Combustion Chamber:
Yes
Intake Runner Volume (cc):
227 cc
Exhaust Runner Volume (cc):
n/a
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Intake Port Shape:
Rectangular
Intake Port Location:
Standard
Exhaust Port Shape:
Square
Exhaust Port Location:
Standard
Spark Plug Style:
Standard
Comp. Valve Job:
No
Intake Valves Included:
Yes
Intake Valve Diameter (in):
2.020 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in):
1.600 in.Ê
Valve Springs Included:
Yes
Maximum Valve Lift (in):
0.650 in.
Outside Diameter of Outer Spring (in):
1.550 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:
NoÊ
Rocker Arms Included:
NoÊ
Rocker Arm Nuts Included:
NoÊ
Guideplates Included:
NoÊ
Valve Cover Mounting Style:
Perimeter Bolt
Accessory Bolt Holes Drilled:
YesÊ
Intake Valve Angle:
20 deg.
Exhaust Valve Angle:
20 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
Assembly Specifications
Max Lift: .650
Coil Bind: .925
Intake Install: 275lbs @ 2.1
Exhaust Install: 275lbs @ 2.1
Closed Sear Pressure: 210lbs
Open Seat Pressure: 450lbs
One of the best upgrades to your Small Block Ford engine is the replacement of your cast iron head to a better performing and lighter aluminum head. How great is it that you can now do it at a price that s affordable. Our line of Small Block Ford performance heads have proven themselves time and time again both on the track and on the dyno, not to mention countless features in performance magazine articles. We offer Small block ford cylinder heads for a wide range of displacement applications. With bigger displacement engines becoming more common, the need for more airflow is necessary. If you are looking to build a 400-700 horsepower engine then you should consider Speedmaster Aluminum cylinder heads. Like the rest of our performance heads we use our Gravity Die Cast process. This casting process creates a much more uniform and robust cylinder head. They also offer a smaller cross section to increase the incoming air s velocity resulting in improved drivability, power and economy. We have them available in as cast for the mild street applications and in Fully CNC machined for the serious enthusiast. Speedmaster CNC ported cylinder heads are machined on a dedicated 5 axis CNC machining centers to ensure accuracy and cost effectiveness. Combustion chamber, exhaust and intake ports are fully CNC machined for better flow. CNC combustion chambers offer superior control over flame travel and quench area. CNC ported heads eliminate human error and variation from port to port.