ISO 1967 GS400 Exhaust Manifold pair - Buick Forum - Buick Enthusiasts Forums


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Old 09-24-2017, 11:40 PM
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Exclamation ISO 1967 GS400 Exhaust Manifold pair

I'm looking for the exhaust manifolds for a 67 GS400 because a previous owner attempted to ram headers into the car. The result is heavily dented headers, improper seating of the engine creating the need for a smaller radiator fan and an upward pitch of the engine itself, and they actually ground into the steering wheel shaft to create clearance. It's a safety issue, and I'm trying to get back to the original configuration.

Thanks!

Last edited by Brian Rigby; 09-24-2017 at 11:41 PM. Reason: additional information
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Old 09-26-2017, 04:02 AM
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Tubing headers in those times just plain sucked. All these well known brands and nothing was ever welded or jigged right. Even today names like Kooks can be misaligned by maybe an inch. When I put headers and dual glass packs on my '67 Mustang Fastback (in '69) I actually had to get the tubes heated red hot, sprung and rebent. Did like though how they showed under car somewhat.

As far as restoration, if one of the past owners butchered the car that much, I'd be looking for more shortcuts he took, say raising or lowering rear end? By '67 the raised back end was desirable.... Early '60's the opposite was true. Heard of one that put a huge rock in trunk to lower and was fine until he was in an accident "A Rolling Stone?".

Believe the early GS was a Buick Skylark and hadn't changed motors yet from the legendary "Nail Head"? Maybe a sub 15 second 1/4 mile which was really quick for then but not today. Even a 12 second 1/4 is slowing down by some standards.

Last edited by Rich B.; 09-26-2017 at 04:15 AM.
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