Engine Parts
Ford Small Block Windsor 4.7L 289 · 5.0L 302 · 5.8L 351
Air & Fuel Delivery
Procomp Electronics
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.
Traction Drive Systems
OEM
Flow Results PCE281.1573
PCE281.1601
Turnkey Carburetor
These Flow Numbers are as Cast Intake Valve - 2.020” Exhaust Valve - 1.600”
LIFT
INTAKE
Turnkey EFI
0.100 59.4 0.200 108.0 0.300 154.9 0.400 203.5 0.500 239.8 0.600 260.3 0.700 268.2 0.750 269.9 Intake Port: 195cc Exhaust Port: 60cc Combustion Chamber: 64cc
These Flow Numbers are CNC Ported Intake Valve - 2.200” Exhaust Valve - 1.600”
LIFT
EXHAUST
INTAKE
EXHAUST
0.100 71.5 59.1 0.200 158.7 123.2 0.300 229.8 174.1 0.400 290.6 218.4 0.500 327.3 240.4 0.600 359.5 252.5 0.700 377.4 260.6 Intake Port: 215cc Exhaust Port: 60cc Combustion Chamber: 64cc
50.4 102.2 145.9 159.8 166.9 169.8 170.0 170.4
Turnkey Forced Induction
Bare | As-Cast Intake Runner Volume (cc)
Combustion Chamber Volume (cc)
Comp. Valve Job
Intake Valve Diameter (in)
Exhaust Valve Diameter (in)
Valve Angle
Cylinder Head Material
SKU
160 cc
62 cc
No
2.020 in.
1.600 in.
20 deg.
Aluminum
PCE281.1533 (**)
175 cc
62 cc
No
2.020 in.
1.600 in.
20 deg.
Aluminum
PCE281.1539
180 cc
60 cc
No
1.940 in.
1.600 in.
20 deg.
Cast Iron
PCE281.1761
190 cc
62 cc
No
2.020 in.
1.600 in.
20 deg.
Aluminum
PCE281.1556
210 cc
62 cc
No
2.020 in.
1.600 in.
20 deg.
Aluminum
PCE281.1573
Comp. Valve Job
Intake Valve Diameter (in)
Exhaust Valve Diameter (in)
Valve Angle
Cylinder Head Material
SKU
2.020 in.
1.600 in.
20 deg.
Aluminum
Crate Motors
(**) = OEM Replacement with EGR Passage
Bare | Full-CNC
Tools, Accessories & more
Intake Runner Volume (cc)
Combustion Chamber Volume (cc)
No 227 cc
64 cc
2.020 in. Yes
2.055 in. 2.080 in.
68
PCE281.1601 PCE281.1629
1.600 in.
20 deg.
Aluminum
PCE281.1617 PCE281.1641