
Cast Aluminum Cylinder Head Small Block Ford 289/302/351W
- Intake Valve: 2.020"
- Exhaust Valve: 1.600"
- Sold as a pair
- Max Lift: .550"
- Coil Bind: .740"
- Intake Install: 130 lbs @ 1.8
- Exhaust Install: 130 lbs @ 1.8
- Closed Seat Pressure: 110 lbs
- Open Seat Pressure: 300 lbs
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
Ditch Restrivtive, Heavy Cyclinder Heads for Speedmaster Performance Heads
One of the best upgrades for your engine is to replace cast iron heads with a better performing and lighter aluminum head. Speedmaster's line of performance cylinder heads have proven themselves time and time again both on the track and on the dyno. Many variations are offered for popular Small and Big Block engines to bring performance output to the next level. Available in as-cast for mild street applications and in Fully CNC machined for the serious enthusiast.
![Small Block Ford Aluminum Cylinder Head for use with Hydraulic Flat Tappet Cam [185 cc Intake Ports]](https://www.jegs.com/images/mini_200/500/555/555-514074.jpg)



![185-505FT Thumper Cylinder Head for Small Block Ford, 185 cc Intake, 60 cc Chambers, Flat Tappet .550 in. Max [Complete]](https://www.jegs.com/images/mini_200/500/516/516-185-505ft.jpg)
