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Old 11-19-2011, 08:12 PM   #1
BIG77k10chevy496
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Exclamation small block to big block headers 1977 k10 ?????????

hi im a noob to this forum and I just swapped in a 496 stroker (454) into my 1977 k10 with th350 long box. it used to have a 400sbc with headman headers wich fit perfectly, but this motor came with long tubes from a early 70's t/a wich clear the crossmember but drop a few inches to far and won't clear the bulge of the transfercase. I then baught some flowtechs p# 11530-flt wich dropped waaay to far and the crossmember cuts right across the collector exit.
im obviously not the first one to put a bbc in a sbc half ton truck so im wondering what other people used for headers.... sorry to ramble but tried to give the max info possible.
thanks in advance!
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Old 11-19-2011, 08:50 PM   #2
baclay9
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Re: small block to big block headers 1977 k10 ?????????

I used Sanderson BB8's when I made the swap. Fit great!
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Old 11-19-2011, 10:00 PM   #3
BIG77k10chevy496
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Re: small block to big block headers 1977 k10 ?????????

oh were these shroty headers? I was prefering full length headers, one person said they used headers for a two wheel drive truck with s bends, anyone heer of that?
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Old 11-21-2011, 12:00 AM   #4
77BBGMC
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Re: small block to big block headers 1977 k10 ?????????

Welcome to the forum! I used Hooker 2455's on mine (2wd).
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Old 11-22-2011, 02:13 PM   #5
BIG77k10chevy496
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Re: small block to big block headers 1977 k10 ?????????

are these just for square port heads? I googled the part # and on summitracing i think it was, kept saying that... if I find them in round port head ill give them a try then ill let you guys know. thanks!
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Old 11-24-2011, 12:57 AM   #6
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Re: small block to big block headers 1977 k10 ?????????

I have oval port heads.
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