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Old 08-25-2004, 05:56 PM
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350 and 454/455 V8 stock HP and Torque?

Hi guys, I'm new here and I am wondering how much horsepower and torque a Chevy 350 V8 and a Pontiac 455 V8 have stock from the factory.

I have a '73 Chevelle Malibu 4-DR 350 V8

Friends got '72 Pontiac Lemans SS Luxery 455 V8

Can you please give me the stock HP and torque numbers, thanks

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Last edited by Malibu73; 08-26-2004 at 07:18 PM.
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Old 08-26-2004, 05:08 PM
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Nobody knows the numbers?
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Old 08-26-2004, 08:16 PM
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If you had the block #'s it would alot easier. As for the Pontiac you are looking at around 300 Horse and 415 lbs. torque. I would imagine the small chevy won't have near that!
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Old 08-27-2004, 02:12 AM
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Oh sorry. I thought they were around the same HP and torque.

So what's with the block numbers? did they make different engines with different amounts of HP and torque? I thought there was just a small block chevy 350 and a big block chevy 454. Then there's the big block 455 in the pontiac.. Then it varies for different companies like Ford, Olds etc...
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Old 08-27-2004, 02:21 AM
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For chevy small block thers 267,289(i think), 305, 350, 400. and big block theres 366, 454, 502 that i can think of, i know theres more.

depends on the year and stuff for how much HP. if you get the block # then you can find out easyier.
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Old 08-27-2004, 05:48 AM
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the indian must be alot different than the buick 455,it 525 ft. lbs.
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Old 08-27-2004, 09:17 AM
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There is a pretty big difference in torque numbers between a small block and a big block. Big blocks will always have more torque. If i had to guess on the '73 chevy 350 horsepower........250-260?


Also, without the year and model on the chevy 454 it is impossible to give the power numbers becasue over the years there has been considerable drop off.
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Old 08-27-2004, 12:15 PM
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Well it's a 1973 Chevrolet Malibu 4 door small block 350 V8 with a quadrojet carb on it. My dad's a mechanic and has done various things to the engine. He basically built the thing himself, he had the pistons and rings picked out by this ex-race car driver so they were meant to go fast and stuff, he had it bored and flowed too.. I don't know the specifics but that's some of what he did... Also, with an old crappy carb that he rebuilt but was problematic, he got it up to 135Mph before he ran out of road. It's got a turbo 350 tranny with a shift kit in it for now, we're going to put a 400r4 in it soon though. It also has front and rear sway bars and quality suspention, it was made for cornering by my dad..

I'll try to get the block number for you guys, where on the block is it located?

Last edited by Malibu73; 08-27-2004 at 12:27 PM.
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Old 08-27-2004, 06:36 PM
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K I'm gonna assume this is a ligitamate posting and not a troll


Quote:
Originally posted by montea
For chevy small block thers 267,289(i think), 305, 350, 400. and big block theres 366, 454, 502 that i can think of, i know theres more.

depends on the year and stuff for how much HP. if you get the block # then you can find out easyier.
chevy small blocks are 262.265,267,282,302,327,350,400
Big block chevy:366 396(402),427(tall/short),454.

In 1973 gm used net hp rating which was far more accurate for a 73 350 would be 200-240net.

Btw there is no such thing as a 400r4 I assume you mean the 700r4


Quote:
Originally posted by Robinson Robin
chevy small blocks are 262.265,267,282,302,327,350,400
Big block chevy:366 396(402),427(tall/short),454.

In 1973 gm used net hp rating which was far more accurate for a 73 350 would be 200-240net.

Btw there is no such thing as a 400r4 I assume you mean the 700r4

Last edited by Robinson Robin; 08-27-2004 at 06:36 PM.
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Old 08-27-2004, 09:36 PM
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Right, sorry, I meant the 700r4

Hey, I think I found my model number. It's 1D69_2

Taken from here
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Old 08-28-2004, 10:49 PM
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Just talked to my dad who's seen the pontiacs engine and he thinks it's a 389. So, I'll have to wait until my friend gets back from the coast to get his engine block number.

Meanwhile, I'll try and get mine.
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Old 08-29-2004, 04:06 PM
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Did that number I listed help?

Also, is there a 389 pontiac engine?
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Old 08-29-2004, 04:36 PM
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Yes, there is a Poncho 389. As for the #'s they didn't help me.
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