intake questions

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Dec 19, 2009 | 10:07 AM

readyakira

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intake questions

Building a 302 for a van project and looking to get good low end power but not sure what intake to look for. I am using flat top 4 valve relief pistons will be looking for gt40 (non p) heads that will have some bowl work done but not much port work. Question is what intake should I look for to get good low end numbers?

Dec 19, 2009 | 03:36 PM

gfw1985

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From: Raphine, Virginia

Normally I would say an Edelbrock Performer 2121 for the older engines, but I have no experience with those heads.

Dec 19, 2009 | 03:59 PM

Beanscoot

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From: British Columbia

The stock 289/302 4V intake would be good, or the 83-85 Mustang aluminum 4V.

Dec 19, 2009 | 09:55 PM

Conanski

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From: Ottawa, Ontario

Carbed or EFI?

Dec 19, 2009 | 10:01 PM

bronco3512

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any dual plane aluminum intake would do the job. edelbrock and weiand make great intakes. stay away from single plain. depending on your cam selection a 600 cfm carb would work great for a street application.

Dec 22, 2009 | 10:29 AM

readyakira

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Well, we were talking about tourqer2 but I am really not sure. the gt40 heads(p) flow if I remember 46 on both ports I think that was the highest stok head flow numbers we saw. Next question is the GT40P heads are different due to spark plug holes? can anyone show a pick of the diff heads and why headers are a problem with the P heads? I found a bunch of P heads, but not the non P for sale in my area.

Dec 22, 2009 | 12:52 PM

Conanski

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Quote:

Originally Posted by readyakira

The gt40 heads(p) flow if I remember 46 on both ports I think that was the highest stok head flow numbers we saw.

Here are some flow numbers for ya...
Windsor_HeadFlow on Flickr - Photo Sharing!

Quote:

Originally Posted by readyakira

Next question is the GT40P heads are different due to spark plug holes? can anyone show a pick of the diff heads and why headers are a problem with the P heads?

Plugs come out at pretty close to a right angle to the head which leaves very little room for headers and plug wires.