Description
At Borowski Race Engines, we use ALL PRO heads on most of our big power LS engine builds with hydraulic roller cams. Here are some reasons why:
– Great air flow (380 cfm at 0.70″ lift) as shown in photoset charts- 100% virgin Alcoa aluminum ingot with no remelt
– Heads have been fully 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. Watch the videos below to see the 5-axis and Newen at work.
Standard hardware:
– Manley Severe Duty Stainless Steel 2.200″ Intake Valves
– Manley Extreme Duty Inconel 1.615″ 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 a special spring package, big boost, solid heads, 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 videos below to hear about the head design, manufacture and HIP treatment directly from Bob Williams, owner of All Pro Cylinder Heads. You also should hear what the owner of Cutaway Racing has to say about their performance as he has used plenty of them.
Priced per pair.
Payment Methods Accepted: cash, ACH, wire transfer, credit card subject to approval and fees
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