At Borowski Race Engines, we use All PRO heads on most all of our big power LS engine builds. Here are some reasons why:
- Great air flow (380 cfm at 0.70" lift) as shown in photo set charts
- 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
- Billet rocker rails instead of bosses which we have found to be prone to cracking on other heads
- Suitable for either traditional or shaft rockers
We buy these heads as 12 degree, LS7 design porter castings. We are able to impart either LS3 or LS7 shape ports when we machine them on our 5-axis CNC. Our Newen CNC seat & guide machine does the valve job and bowl blending in one operation.
Standard hardware (Manley or BTR equivalent):
- Manley Severe Duty Stainless Steel 2.200 inch Intake Valves
- Manley Extreme Duty Inconel 1.615 inch 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 head, mechanical cam, titanium valves, etc.? Give us a call at 815-725-2727. We can machine and assemble whatever you need from either these or other available All Pro castings.
Be sure to watch the video with this ad to hear about these heads directly from Bob Williams, owner of All Pro Cylinder Heads. Click BUY NOW to go over to our website for more videos and info or to place your order.
Priced per pair.
