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Old 05-14-2023, 02:23 PM
694.1 694.1 is offline
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Default 75 ventura with Buick 350, comparison?

At our dust off & tour yesterday, some of us got to talking about the Buick 350 in the 75 at the show.
My suspicion is that this engine is pretty close to the Pontiac in weight, dimensions & the like. I suspect it is a bit lighter.
How might it compare in the torque & horsie dept?

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  #2  
Old 05-15-2023, 08:54 PM
SD455DJ SD455DJ is offline
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Quote:
Originally Posted by 694.1 View Post
At our dust off & tour yesterday, some of us got to talking about the Buick 350 in the 75 at the show.
My suspicion is that this engine is pretty close to the Pontiac in weight, dimensions & the like. I suspect it is a bit lighter.
How might it compare in the torque & horsie dept?
The Buick 350 is 175 lbs (give or take a few lbs) lighter than the Pontiac 350 (450 lbs to 625 lbs). The little Buick has a 3.80" bore x 3.85" stroke vs. the Pontiac 350 of 3.88" bore x 3.75" stroke. The '70 GS350 was rated at 315 hp/410 lbft torque vs. the '69 350HO at 330 hp/380 lbft torque (highest rating for both). It seems the '69 Pontiac 350HO was a bit more powerful than the Buick let on to be...my take anyway. The '68 350HO is more comparable with the smaller valves and cams.

Dennis

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