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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5212693 09/14/19 07:04 PM
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The Buick mainly because I believe it to be more valuable with the same color exterior, interior, and the identical options. The Buick cost more new and that is why the production numbers are lower. I know a guy that bought one brand new, kept it nice with low miles, and still owns it.


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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5212703 09/14/19 07:13 PM
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I'm partial to the GS, just because it was a bit different. I had a 442 and most of my friends had various Chevelles, except for one, who found a GS. By the time we got them, there were more rust holes than intact sheet metal, but we had a blast racing and wrenching. I'm sure none survived, but around here a mint, numbers-matching example of any of them would fetch far more than most new cars.


Down like a clown, Charlie Brown...
Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5212724 09/14/19 07:53 PM
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Buick 455 will eat that Chevy 396 everyday all day !!

Last edited by kstanf150; 09/14/19 07:54 PM.
Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5212782 09/14/19 09:32 PM
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69GTX Offline
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There are less Buick collectors around but that is tempered by less Buicks vs Chevys. But the GS is the better car imo since it's far scarcer than the Chevelle SS. In the end it comes down to condition. Consider rust free orig sheet metal or replaced body panels or patched areas. That's a big swing . Original stamped VIN on engine and Trans are big pluses as are original data plates, factory paperwork, build sheets, etc. Color and options play a strong role too. The right color, the right docs, matching #'s, orig sheet metal, 1-3 previous owners are all things that drive the value. 2 seemingly "identical" cars could be 2X difference in price because of all "the extras."

Buick GS stage 1 is pretty good bang for the buck. Probably one of the best underrated muscle cars out there. Everyone knows Chevelle SS, Boss Mustang, GTO's, Hemi Cuda's and Charger 6 packs, Not so many are familiar with Olds 442 and Buick GS. The GS is even less widely known than the 442. And the GS455 over the GS400 is a nice step UP. My grandma owned a 1964 Buick Wildcat 4 door with the 400 ci engine. That was a pretty fast car for what it was. Had fun driving that in the early to mid 70's.


Last edited by 69GTX; 09/14/19 09:33 PM.

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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: kstanf150] #5212812 09/14/19 10:13 PM
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[quote=kstanf150]Buick 455 will eat that Chevy 396 everyday all day !![/quote
A more fair comparison would be the Buick 455 GSX vs the Chevy 454 LS6. The 1970 396 and the LS5 454’s were slugs.
IIRC the 1970 GSX was one of the fastest muscle cars ever. Right up there with the Hemi in 1970.

Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5212833 09/14/19 10:35 PM
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The Chevelle will sell for more & has better parts support.

BOPC engines were vastly superior to Chevrolet engines back then.....They were cast, machined & built better! It wasn't really all that rare to get 200,000 out of a 429 Cadillac or a 455 Oldsmobile. Buick engines had oil pump issues like already stated.

My mom drove a 1970 Buick Electra 225 Limited 2 door for @ 28 years, Every 4 or 5 years....We had to put oil pump gears in it because to would lose prime. Pack it with Lubriplate along with a fresh Oil & Filter....Back on the road in 45 minutes. You just had to know that if the oil light didn't go out immediately after start-up to shut it down.

I used to put BOPC engines in Chevy/GMC trucks.....429/500 Cadillac's were the hardest pulling of the bunch & Oldsmobile/Pontiac 455's were the easiest because the oil filter location.


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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: clinebarger] #5212877 09/14/19 11:52 PM
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Chris: had one of these back when … what I remember well was it’s ability to down shift and overtake another vehicle at highway speeds

824B966E-EC0D-43F4-8B22-C4B4A178C789.jpeg
Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5213063 09/15/19 08:25 AM
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As stated above, there was a very short period for the biggest HP/C.I. big blocks, before the emission window started closing, pretty rapidly in '73 or so. Rust claimed a lot of them, but a few have survived around here.


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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5213146 09/15/19 09:28 AM
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To the OP's question, of those two choices look for a Buick GS 455. The ss396 is a great looking car, the 1970 is the most iconic of the Chevelles, but I think the market for them saturated quite a while ago. I doubt I could sell mine for more than I bought it for about 13 years ago. Advantages of Chevelle are greater parts availability, ability to mod engine(if that is your thing) and you could likely get a very nice restored SS396 L34 350 hp for less than a comparably nice/original GS455. Obviously, the 375hp solid lifter 396 is more rare and expensive but notably stronger car. The 350hp 396 is a nice torquey motor but it is not in the same league as a 455 Buick or a 454 Chevrolet.
The GS455, like some of the other BOPs, have been increasing in value over the past several years. Where they will peak, who knows? With these old cars its ultimately about what you like. You shouldn't really be looking at them as an investment.
If I could trade my Chevelle for a comparable 1970 GS455 4 speed I probably would.


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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5213209 09/15/19 10:44 AM
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The 65, 66 and 67 A bodies were the best looking. Period.
I had a 70 Corvette Coupe (hate coupes) with a 70 CRR Chevelle engine.
That was the legendary 454/450 LS-6 with Turbo 400.
Car was dangerous. 4 mpg.


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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: 007] #5213347 09/15/19 01:16 PM
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Unless I thought I was going to keep it forever, I would go with the Chevelle which has a larger market for when you want to sell.

Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: gman2304] #5213712 09/15/19 07:47 PM
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Originally Posted by gman2304
[quote=kstanf150]Buick 455 will eat that Chevy 396 everyday all day !![/quote
A more fair comparison would be the Buick 455 GSX vs the Chevy 454 LS6. The 1970 396 and the LS5 454’s were slugs.
IIRC the 1970 GSX was one of the fastest muscle cars ever. Right up there with the Hemi in 1970.



The 455 GSX is where I’d bet my money

Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: ls1mike] #5213886 09/15/19 10:54 PM
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Originally Posted by ls1mike
The Buick for me. I have always loved those.


I agree! I would love to park a Buick GS next to my 87 Buick GN....I would then have the best of both worlds.

Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: kstanf150] #5214109 09/16/19 08:12 AM
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Originally Posted by kstanf150
Buick 455 will eat that Chevy 396 everyday all day !!

Yep. Many small blocks too. If you were cruising Saturday night and a guy with a hot 327 or 340 Mopar threw a rev at a light you had better be on your toes when the light turns green.


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Re: 1970 Chevelle SS 396 vs Buick GS Stage 1 455 [Re: Chris142] #5214396 09/16/19 01:38 PM
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Originally Posted by Chris142
Originally Posted by kstanf150
Buick 455 will eat that Chevy 396 everyday all day !!

Yep. Many small blocks too. If you were cruising Saturday night and a guy with a hot 327 or 340 Mopar threw a rev at a light you had better be on your toes when the light turns green.


My father was a huge Buick lover. When I was kid he had two cars with 455’s. In stock trim they were fast, never remember him getting out run

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