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Exhaust manifold bolt question??????

Started by speach, December 13, 2011, 08:31:32 AM

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speach

I understand that the exhaust manifold bolts that fit the 472/500/425 are the same. Does anybody know if the same bolts fit other year motors? For example can I use the same bolts for other pre 472 engines like 429/390 etc.? This would be very helpful for me to know.

Thanks, a bunch.

W Trausch
Current cars:
1986 Military Chevrolet Diesel G30 Box Van
1968 Conv DeVille
1989 Toyota SpaceCruiser


You cant take your car with you in the end so drive the dang thing.

WilliamTrausch

Scot Minesinger

It looks like the 1968 thru 1979 exhaust manifold to head bolts are the same per USA Parts, which of course is the 472/500/425 family.  It seems unlikley from this parts listing that the same bolts would be workable on the 429/390 engines.
Fairfax Station, VA  22039 (Washington DC Sub)
1970 Cadillac DeVille Convertible
1970 Cadillac Sedan DeVille
1970 four door Convertible w/Cadillac Warranty

Bob Hoffmann CLC#96

68 & later bolts are 3/8X16. 67 & earlier are 7/16X14.
HTH, Bob
1968 Eldorado slick top ,white/red interior
2015 Holden Ute HSV Maloo red/black interior.
             
Too much fun is more than you can have.

speach

You guys have any knowledge of the later motors? 368? exhaust bolts same as the 472/500/425 family???
Current cars:
1986 Military Chevrolet Diesel G30 Box Van
1968 Conv DeVille
1989 Toyota SpaceCruiser


You cant take your car with you in the end so drive the dang thing.

WilliamTrausch