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Old 10-09-2010, 12:08 PM   #1
1986gmc3/4
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need info

i have 1991 454 tall deck tbi want to change to 4bbl, wondering if a 366 intake will work or what will.

Last edited by 1986gmc3/4; 10-09-2010 at 12:09 PM.
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Old 10-09-2010, 11:38 PM   #2
Captainfab
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Re: need info

Any tall deck intake should work...366 or 427
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Old 10-16-2010, 07:42 AM   #3
1986gmc3/4
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Re: need info

thanx 4 the help
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Old 10-16-2010, 04:56 PM   #4
SSedan64
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Re: need info

Did GM change the mounting angle of the center Intake bolts to 72* on the BBC in 87 like they did on the SBC?
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Old 10-16-2010, 11:08 PM   #5
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Re: need info

Not to my knowledge.......

Quote:
Originally Posted by SSedan64 View Post
Did GM change the mounting angle of the center Intake bolts to 72* on the BBC in 87 like they did on the SBC?
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Old 10-19-2010, 05:01 PM   #6
1986gmc3/4
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Re: need info

no they go in on a angle like the old ones do
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