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Old 09-16-2016, 10:38 AM
john marcella john marcella is offline
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Quote:
Originally Posted by Jack Gifford View Post
What are "they"? If you are talking about all Pontiac heads, I'm interested in hearing more details.

Edit: that came out sounding like I meant Bob & Frank's ALL-PONTIAC heads- that's NOT what I meant.
Yes I was speaking about every Pontiac head I've ever had my hands on. Valve placement, spark plug location, available material. All things that are constant problem with every Pontiac heads ever worked on. It's frustrating when the given architecture would actually let you do something much better. It gets very costly when you have to pull seats and guides weld up combustion Chambers move guide locations re install new seats.
Im Really trying to have something that's good bang for the buck. And we could currently have that with multiple castings that are currently available. But nope ! I don't know what some of these guys are thinking when they designed this stuff. Frustrating.

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John Marcella
Marcella Manifolds Inc.
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ph. 248-259-6696