Can you open up the exhaust side of head to match 1470 gaskets?
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Registered User
Joined: Oct 1999
Posts: 3,531
From: Battle Creek, MI
Can you open up the exhaust side of head to match 1470 gaskets?
Just wht the title says 
I'm having my heads ported, and he wants to know which exhust gasket I am going to use. I have used the 1406 before, but I am thinking the 1470 will be better, and he can open the port more to match... any problems with that?
I'm having my heads ported, and he wants to know which exhust gasket I am going to use. I have used the 1406 before, but I am thinking the 1470 will be better, and he can open the port more to match... any problems with that?
Registered User
Joined: Oct 1998
Posts: 265
From: Kingfisher,Oklahoma
You can but I wouldnt, If you lower the floor like that you will lose alot of the inherent anti-reversion these heads have in em. I havent actually done it but a few people I trust have told me to keep the "D" shape of the port. The roof is where the flow is anyway.
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