Specs on the LM1 engine?

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Mar 10, 2006 | 11:32 PM

dgruenke

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Drifting

Joined: Apr 2002

Posts: 1,716

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From: New Baden Illinois

Specs on the LM1 engine?

It looks like I will need to get another engine for the vette. I am considering the LM1 GM Goodwrench engine. Pace Performance lists it at 250 hp and 350 tq. Scoggin Dickey lists it at 249 hp and 304 tq.

Any ideas on what the actual numbers are?

Does anyone that has this engine have any comments or complaints?

Thanks everyone.

Mar 11, 2006 | 12:30 AM

fl_rider

Drifting

Joined: Mar 2005

Posts: 1,806

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From: Burlington WI

Why not??

Put this one in instead.

GMPP
350 Crate Engine 290 HP HO 12499529

SKU: 12499529
RETAIL: $2,284.29
YOUR PRICE: $1,678.99

Mine runs great.

Mar 11, 2006 | 02:08 AM

Shark Racer

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Posts: 12,399

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From: San Jose CA

It'll run just about like a fresh stock L48. The heads are junk and the cam matches L48 spec.

I'd cam it at the very least - then you'd have an L82 clone anyhow.

Mar 11, 2006 | 07:11 AM

Fevre

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Joined: Mar 2001

Posts: 11,322

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From: Living in the Hartland

The answer is: it depends on the set up

Check out this tech article form Checy Hiperformance where they got 265 hp and 350 torq out if it in stock form, there is a whole series on building the LM1 up and the page links to the series listing but for some reason the links page does not work so just google search 'Goodwrench quest II' then keeping changing the Roman numeral up to VIII, I have an LM1 and started with stabbing a $60 summit cam in it when I bought then went all the way up to alum heads and the Crane roller cam they use in the ZZ383

http://www.chevyhiperformance.com/techarticles/46320/

Mar 11, 2006 | 08:58 AM

dgruenke

Thread Starter

Drifting

Joined: Apr 2002

Posts: 1,716

Likes: 4

From: New Baden Illinois

Quote:

Originally Posted by fl_rider

Put this one in instead.

GMPP
350 Crate Engine 290 HP HO 12499529

SKU: 12499529
RETAIL: $2,284.29
YOUR PRICE: $1,678.99

Mine runs great.

I did consider that engine as well. However, I figured that if I chose the GM Goodwrench engine with 40 fewer horsepower, I would get a 3 year, 100,000 mile warranty, instead of the 1 year, 12,000 mile warranty with the GMPP engines.

I also did read the articles of beefing up the LM1. The only reason why I wouldn't start changing things is because it would void the warranty. After the 3 year warranty, everything is fair game.

The Pace Performance website stated that they got their numbers using an Edelbrock 2101 intake, Q-jet carb, and 1 5/8" headers. I figured that if they did actually get 350 ft-lbs torque, that is pretty good.

Mar 11, 2006 | 09:09 AM

dgruenke

Thread Starter

Drifting

Joined: Apr 2002

Posts: 1,716

Likes: 4

From: New Baden Illinois

Whoa, not sure why this one was moved. I intentionally put it in the tech/performance because it was dealing with TECH/PERFORMANCE.

Mar 11, 2006 | 09:18 AM

GDaina

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Joined: Feb 1999

Posts: 16,978

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From: In Dreams There Is Truth Ohio

Not really Technical...threads such as problem solving, how to are more tech related, threads asking difference why one vendor has different h.p. numbers than another, fit into General.