408 stroker build
Legend
Joined: Jul 2007
Posts: 7,843
Likes: 13
From: DFW, Texas
I agree that p2v should not be an issue with aftermarket pistons. When you buy performance pistons, they know you're not just slapping a stock cam back in there.
That being said, had I just slapped those thinner gaskets on my truck and called it a day, it might have been BOOM, not VROOM. Hence, I always check.
That being said, had I just slapped those thinner gaskets on my truck and called it a day, it might have been BOOM, not VROOM. Hence, I always check.
All Star
Joined: Jan 2009
Posts: 907
Likes: 2
From: Corrales, New Mecico
http://www.shadydellspeedshop.com/faq.htm#?Using
Administrator
Joined: Apr 2010
Posts: 87,475
Likes: 4,223
From: Clayton MI
Granted, the Fel-Pro's will prolly be fine. Not like you are running huge compression numbers, with forced induction, and nitrous......
Getting the right surface finish shouldn't be that much of a chore. Do that BEFORE you clay the valves though.
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Record Breaker
Joined: Feb 2010
Posts: 1,504
Likes: 1
From: Chesapeake, VA
the notion that they may "weep" when the engine is cold has already sent me running.
aside from milling the surfaces, what needs to be done?
i assume the felpros needn't a flawless deck surface?
aside from milling the surfaces, what needs to be done?
i assume the felpros needn't a flawless deck surface?
Administrator
Joined: Apr 2010
Posts: 87,475
Likes: 4,223
From: Clayton MI
Fel-Pro's are a bit more forgiving......
I didn't investigate what surface finish they required.... but, one would think it would be relatively easily accomplished in a.... machine shop.....
He also noted that the weeping was generally due to 'improper' surface finish..... Though I do tend to agree with you. If they can make the cylinders seal permanently, whats the difficulty with water jackets? Hell of a lot less pressure there.
I didn't investigate what surface finish they required.... but, one would think it would be relatively easily accomplished in a.... machine shop.....
He also noted that the weeping was generally due to 'improper' surface finish..... Though I do tend to agree with you. If they can make the cylinders seal permanently, whats the difficulty with water jackets? Hell of a lot less pressure there.
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Record Breaker
Joined: Feb 2010
Posts: 1,504
Likes: 1
From: Chesapeake, VA
i think ill stick to the general sentiment of using what i KNOW to work (just like the gapless rings that are on they're way back to summit ) especially with such a mild CR of just 10:1.
good point, how the hell do you seal 250psi cylinder pressure, but fail to seal a water jacket?
) especially with such a mild CR of just 10:1.good point, how the hell do you seal 250psi cylinder pressure, but fail to seal a water jacket?
All Star
Joined: Jan 2009
Posts: 907
Likes: 2
From: Corrales, New Mecico
i think ill stick to the general sentiment of using what i KNOW to work (just like the gapless rings that are on they're way back to summit ) especially with such a mild CR of just 10:1.
good point, how the hell do you seal 250psi cylinder pressure, but fail to seal a water jacket?
) especially with such a mild CR of just 10:1.good point, how the hell do you seal 250psi cylinder pressure, but fail to seal a water jacket?
These guys....Kammer and Kammer...
Last edited by Adobedude; Apr 22, 2011 at 09:26 PM.