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How many "400" V8s has GM built over the years?

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That Olds 455 certainly had oodles of tire-shredding torque though--just couldn't expect a lot of revs out of it! :)

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^ That's why the Buicks handed the Olds's their asses- Buick had a sweet short stroke 455.

Olds' were for boulevard cruising...

I thought the Olds' were all about the torque.

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Wasn't the '70 Buick 455 Stage 1 like one of GM's highest rated engines of that era in terms of torque? Like over 500 lbs-ft?

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'70 Olds 442 ::

Base: 455cu in, 4-bbl, 10.50 CR, 365 HP @5000, 500 TRQ @3200

W-30: 455cu in, 4bbl, 10.50 CR, 370 HP @5200, 500 TRQ @3600

'70 Buick GS ::

Base: 455cu in, 4-bbl, 10.50 CR, 350 HP @4600, 510 TRQ @2800

Stage 1: 455cu in, 4bbl, 10.50 CR, 360 HP @5200, 510 TRQ @2800

• • •

Of course, you can't go by these ratings alone, esp when you look at the Buick.

Manufacturers shied away from "400 HP" in general, and most calculations of the 455 STG1 were 400-425. It was a half second quicker that the GS455.

So we move to quarter mile tests as a better indicator. Of course, there were varying degrees of factory tuning going on, but not always. Perhaps something can still be learned here

Buick 455STG1 ranks #9,

Olds 455 W-30 ranks #42.

:shrugs:

Being active in the musclecar/performance arena of Detroit iron, I can tell you the Buicks are often dubbed 'Hemi Killers', and not lightly.

Olds 455s do NOT have the same rep to the same degree.

Edited by balthazar

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I also remember that if the Chevy/GMC pickups from 1970-'72 had a "400" logo on the front fender, they were powered by the big block 402. I think it was for 1975 that the 4X4 pickups started offering the 400 small block (with 4V carb) as an option; I think this option lasted through 1979...not sure it made it into the 1980s.

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I actually DID see a non-SS 1970 Malibu 2-door hardtop with a 400 logo and the LS3 big-block under the hood. There weren't a whole lot of them made, apparently...and many of them got "converted" to faux SS's later.

This is another one of those oddballs I wouldn't mind owning.

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