Hey guys got a good deal on a set of 15 degree pontiac ex nascar heads with matching single plane intake. My question is with using the intake for the heads what do i have to convert? does anything even need converted to do this? I read plenty on converting if i wanted to us ethe LTx based intake, but since i am not what do i really need to convert?



any help will be appreciated guys.

 

keep in mind these are SBC heads just branded with the pontiac design.

 

there are no cast intakes available for 15* heads,you have to go sheetmetal,nascar never used a 15*head,odds are they are 18*'s

 

Don't know the whole history other than to say that they WERE used in GTP racing classes many years ago. Don't know about Nascar??

This head must be a bit different from the later 15 degree variants because there are cast intakes available for it. Edelbrock makes a Super Vic that works with the Pontiac xxxxx434 head and that same intake works on a few raised runner 23 degree.

BTW there are cast intakes for many 15 degree heads. Take the Brodix -12 for instance.

-Mindgame

 

As far as the inatke goes yes they make them. I have one. This set up was recently used and prepped by Fulton Racing in South Carolina where it was on a 311 CI small black that made 762 on motor. It was a asphalt motor set up.

 

Which heads are these LALT1? Which casting #s??

Thanks.

-Mindgame

 

i wasn't a where of any 15* intakes.i have a 15* head 454 sbc in a dirt late model and when we built it there was any we could find for it so we had a sheetmetal built,i will have to check out brodix.

 

Conversion consist of modifing the cooling passages for reverse cool, and in some cases (like the pontiac head) providing a place for return oil.

BTW. Cast intakes for the early pontiac stuff is readily availible.

Dennis

 

thanks for the feedback guys. I have a lead on a dart aluminum shortblock so thi smay ne even be a issue.