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Old 01-25-2011, 07:37 PM
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57 pontiac 287 edelbrock 4 brl manifold

i'm considering using the 287 motor for my 57 chieftan. hoping that i can find a 4 barrel intake for it. i'm dropping the idea of putting a small block in it , because i don't think all the changes i need to make are worth the effort. the frame rails are so far apart that it would require many hours of fabrication. i just baught a manual for the transmition, and if it is spent i will buy an adapter plate and put in a turbo 350. so my question is did edelbrock make a manifold for this motor? or do i have to find a cast iron one from a swamp motor?
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Old 01-25-2011, 08:19 PM
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Good luck on finding that intake all i can find is 3x2s Or 2x4s.
I would call edelbrock and offenhauser or whoever sells offy intakes.JMO

Cole
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Old 01-25-2011, 09:13 PM
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My sincere congrats on not going with a sbc, keep it all Pontiac!
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Old 01-25-2011, 09:25 PM
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The 287 had a 4-barrel option, also any 4-barrel intake can be used through '60, IIRC.

Here's a list of casting numbers to look for:

521208
521512
521571
523814
528578
532120
532120
536518
535482

Good luck, and that you went w/a Pontiac engine.


1955 Pontiac 287 CID V8

Last edited by cobalt327; 01-25-2011 at 09:32 PM.
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Old 01-26-2011, 10:33 AM
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i have a hillborn set up for your engine

its going to take me hours of fabrication to adapt it to my RA IV heads!
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Old 01-26-2011, 07:47 PM
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i did some more investigating, i'm going to be looking for a EP-4B, translated to, early pontiac - 4 barrel, edelbrock. i called edelbrock and they stopped selling that intake in the mid 60. looks like a swap meet item.
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Old 01-26-2011, 08:09 PM
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That's a '61-'64 intake. Whether it can be made to work w/the earlier engines, I don't know.


1961-'64 Edelbrock EP4B Pontiac Intake


1960 Tripower Intake, Part #535552

More photos of various early and later Pontiac intakes, HERE.

Last edited by cobalt327; 01-26-2011 at 08:22 PM. Reason: Add images.
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Old 01-28-2011, 10:04 AM
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i was told from an edelbrock rep. who looked it up in the archives that i needed an EP-4B, and that would fit my applicationfrom 1955-1964. He also told me not to use a P-4B, that was for the newer style motors, 1964 and up. Is this info correct? i was also given a part number of 2265, where that would be is beyond me?
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Old 01-28-2011, 01:52 PM
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To be totally candid w/you- I do know know for sure what the differences are between the '55-'60 head water passages and the '61-'64 heads. I do remember there being a difference, though.

The OE intake is not a bad piece, except for the weight. There will not be an appreciable performance gain by using an aftermarket aluminum intake- it will be a visual thing only, IMO.

If you're looking for visual appeal, consider a Tri Power. But for a single 4-barrel aftermarket intake, I cannot help.
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Old 01-29-2011, 01:07 AM
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For the Offenhauser manifolds Google Exeter Auto Supply,they handle a lot of old Offy parts the catalog is available online in Pdf there.
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Old 01-29-2011, 01:10 AM
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I looked there- I didn't see anything (single 4-bbl.) for the '55. Wouldn't hurt for him to look again, though.
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