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Old 04-15-2008, 12:17 PM   #1
kunkelz28
 
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chevelle ss 454

I know this is a little off topic but my co-worker and me had a arguement. I am trying to find factory specs on the 1969 Chevelle ss 454. In particular we were argueing about it would run in the 1/4 mile if it was stock. Does anyone have any info on this or maybe a website? Any help would be greatly appreciated.
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Old 04-15-2008, 12:25 PM   #2
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You might be having difficulty finding info on the 1969 Chevelle ss 454 because Chevrolet didn't come out with the 454 until 1970. Look for L-78 396 and COPO 427 Chevelles in 1969 or look for LS6 454 Chevelle in 1970.
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Old 04-15-2008, 12:32 PM   #3
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I don't think there was a 69 454. I think that was first year in 70.

'70Chevelle SS Performance: LS6 454/450: 0-60 in 6.1 sec, 1/4 mile in 13.7 sec @ 103mph.

in 69 there was a COPO 427 that was brutal:Performance: COPO 427/425: 0-60 in 5.1 sec, 1/4 mile in 13.3 sec @ 108mph.

http://www.oldride.com/library/1969_..._chevelle.html
http://www.musclecarclub.com/musclec...-history.shtml
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Old 04-15-2008, 01:40 PM   #4
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It couldn't have been a 69. GM didn't lift the ban on engines over 400 cubes in intermediate bodies until 70. Thats why all the muscle cars suddenly started getting 454/455s in 70 when they had 400s at the most in 69. Only the COPOs could do it but that was kind of under the table and didn't get noticed.
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Old 04-15-2008, 02:30 PM   #5
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yea they didnt come out with the 454 until 70. but they did under rate it for insurance reasons lol.
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Old 04-16-2008, 10:15 PM   #6
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my best friend has a fully original(nearly) 71 454 cowl vyn top auto and he pulls late 13's
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Old 04-16-2008, 10:42 PM   #7
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A couple questions I have about the car (454 Chevelle), does anyone know how much power it actually has? It was under rated, but what did it really make?
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Old 04-16-2008, 10:57 PM   #8
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Question

The guy's in our club told me they have in there 454 435HP and the
other one has over 400HP but bought his and was told it had over
400HP.

staffordclassics.com
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Old 04-17-2008, 02:55 PM   #9
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Quote:
Originally Posted by DGthe3 View Post
A couple questions I have about the car (454 Chevelle), does anyone know how much power it actually has? It was under rated, but what did it really make?
All depends on which 454 you're talking about -- the LS6 or the LS5. The LS6 was a solid lifter motor (450HP) and the LS5 (360HP) was the hydraulic lifter version. Both were offered in 1970. In 1971, only the LS5 (365HP), with 5 more HP than 1970 (according to the factory) was offered.

I have an unmodified LS5 in my '70, factory rated at 360HP. I've never put it on the dyno, but if I had to guess I would say it's at least 400HP. This estimate is based on other cars I've owned or driven in the past -- like my '70 Monte Carlo SS454. I put a modified 502 BBC in it that dyno'd at close to 500HP at the wheels.

As for the LS6, I think 450HP was close to reality. Both 454's made 500 lb. ft of torque.
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Old 04-17-2008, 04:16 PM   #10
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Even then, those numbers were with the old system of rating horsepower, which was without accessories. Now they are measured with accessories so direct comparison to today isn't straightforwad.
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