APS TWIN, Which Gaskets for 317 heads
APS TWIN, Which Gaskets for 317 heads Would I be better off with the 3 layer gaskets or the 5 layer gaskets?
What are the actual bore sizes of each gasket?
I will be running a completely stock bottom end with 317 heads that have been milled.
I will not be running more than 8 to 10lbs of boost at anytime, until I forge it all.
Thanks for your help guys.
Fil
What are the actual bore sizes of each gasket?
I will be running a completely stock bottom end with 317 heads that have been milled.
I will not be running more than 8 to 10lbs of boost at anytime, until I forge it all.
Thanks for your help guys.
Fil
I believe that GM replaced the 3-layer with the 5-layer for the 4.00+ bore gaskets.
I would be comfortable with the existing 3-layer gaskets you have.
They should be reliable at your HP level assuming a good tune.
I would be comfortable with the existing 3-layer gaskets you have.
They should be reliable at your HP level assuming a good tune.
You will now need the 6.0l headgaskets, not 5.7, if you didnt already know. Just trying to look out and save you some headaches 
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Verdad Gallardo Is there any reason I shouldnt get the 5 layers?
Would they be weaker with boost?
Do any of you know anywhere that has a good deal on either the GM 3 Layer or the Cometic 3 Layer Gaskets?
Thanks,
Fil
Would they be weaker with boost?
Do any of you know anywhere that has a good deal on either the GM 3 Layer or the Cometic 3 Layer Gaskets?
Thanks,
Fil
I am really leaning towards the 3 layers to keep some compression, for under 3200 rpm range because that will give me a few more ponies down low, of course running the thicker 5 layer ones with a bit less compression I can just add a few degrees of timing and get the ponies back.
Honestly I was just hoping to get some feedback from ppl who have used both, and bounce ideas off you guys.
Thanks
Filbert
Honestly I was just hoping to get some feedback from ppl who have used both, and bounce ideas off you guys.
Thanks
Filbert
From what I gather the 3 layer gaskets have proved to be the best so far. The 5 layer are still somewhat new and don't have the time on them yet to make a good opinion. I'm in the same boat as you and just got a set of the 3 layer since I know they're a good gasket.
