Rectangular port intake / heads
#1
Rectangular port intake / heads
Hi Guys,
Considering options - but not sure on compatibility!
I've got a good set of 3994026 heads on my car - mildly ported/rebuilt 118cc open chamber rectangular port heads...
currently matched with the correct OEM high rise 4 bbl rectangular port manifold and topped with a Holley 750cfm ultra double pumper.
Currently have a (cheap repro) L88 hood that i'd like to get rid of - but the manifold/carb/air cleaner have hood clearance issues with a standard big block corvette hood.
the question i have is - are all rectangular port heads created equal? can i use any rectangular port head manifold with these heads, or would some machine work be required to port match some manifolds?
the reason i ask is because i've got my eye on a 3894374 67 tripower setup that i could get my hands on for reasonable money... would it fit? if not, what would? (both the heads and under the hood!)
many thanks for your thoughts!
dave
Considering options - but not sure on compatibility!
I've got a good set of 3994026 heads on my car - mildly ported/rebuilt 118cc open chamber rectangular port heads...
currently matched with the correct OEM high rise 4 bbl rectangular port manifold and topped with a Holley 750cfm ultra double pumper.
Currently have a (cheap repro) L88 hood that i'd like to get rid of - but the manifold/carb/air cleaner have hood clearance issues with a standard big block corvette hood.
the question i have is - are all rectangular port heads created equal? can i use any rectangular port head manifold with these heads, or would some machine work be required to port match some manifolds?
the reason i ask is because i've got my eye on a 3894374 67 tripower setup that i could get my hands on for reasonable money... would it fit? if not, what would? (both the heads and under the hood!)
many thanks for your thoughts!
dave
#2
Melting Slicks
They should match up OK, but be aware are oval port tri power manifolds too.
If I recall the rectangle port OEM 4 barrel is a low/mid rise and fits under a BB hood with dropped air cleaner.
If I recall the rectangle port OEM 4 barrel is a low/mid rise and fits under a BB hood with dropped air cleaner.
Last edited by mikem350; 11-17-2016 at 04:57 PM.
#3
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It will fit heads fine but remember the C2 intake is taller than the C3 one.
Jim.
Jim.