At Borowski Race Engines, we use All PRO heads on most of our boosted LS engine builds with hydraulic roller cams. Here are some reasons why:

- 100% virgin Alcoa aluminum ingot with no remelt
- Heads have been HIP treated (hot isostatic pressing) for greater strength and dimensional stability
- Up to 1 inch deck thickness, 0.75 inch minimum
- Enhanced six-bolt design

We buy these heads as porter castings and CNC port them on our 5-axis using our own boost-specific profile.

Other Features:
- GM Style Rocker Provisions
- Newen CNC Valve Job
- Manley Severe Duty Stainless Steel Intake Valves
- Custom Manley Extreme Duty Inconel Exhaust Valves
- Manley NexTek Valve Springs
- Manley Machined Bead 7 Degree Valve Locks
- Manley Retainers and Locators
- Billet Aluminum Rocker Arm Stand with ARP Bolts

Not exactly what you need? Looking for really big boost, solid lifter design, shaft rockers, etc.? Give us a call at 815-725-2727. We can machine and assemble whatever you need.

Be sure to watch the videos below to hear about these heads directly from Bob Williams, owner of All Pro Cylinder Heads and see a set of these heads in action.

Priced per pair.