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#1
05-26-2004, 02:54 PM
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Will 73 455 heads bolt up to a 67 400? If so, can the 67 intake be used or must I use the 73 intake? Thanks, Ed
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64 Catalina/Ventura/389/auto, 86 Fiero GT/173/4sp |
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#2
05-26-2004, 02:54 PM
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Will 73 455 heads bolt up to a 67 400? If so, can the 67 intake be used or must I use the 73 intake? Thanks, Ed
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64 Catalina/Ventura/389/auto, 86 Fiero GT/173/4sp |
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#3
05-26-2004, 03:15 PM
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I believe everything from 65 and up will interchange.
I used to have a 67 Cat convert many years ago loved that car. |
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#4
05-26-2004, 09:19 PM
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you'll need to check the valve sizes on the 455 heads. the block may have to be relieved so they'll clear the cyl wall.
they will bolt up tho, just may not work right. mike
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so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#5
05-29-2004, 03:26 PM
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Also, watch the valve clearance on the pistons themselves. Might need a dished or relieved piston.
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