350 LM1
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,060
Likes: 33
From: Eagleville PA
350 LM1
Anyone know anything about this engine: 350 LM1?
(You can click it to see it's description)
Can you tell me if it would be a good idea to throw this in my '79 instead of rebuilding my L-48?
Thanks!
(You can click it to see it's description)
Can you tell me if it would be a good idea to throw this in my '79 instead of rebuilding my L-48?
Thanks!
Le Mans Master
Joined: Aug 2000
Posts: 9,662
Likes: 7
From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: 350 LM1 (adamw1979)
It is the standard GM Goodwrench engine. It has been used by a couple of people in their cars. It is reliable, but under powered and not made of the strongest components.
Chevy High performance did a series of articles on this engine and the mods they did to it. They basically put a Com XE268 cam,Vortec heads and headers and made nearly 400 hp with it.
It does have a cast crank, and there has been some negative coments on the quality of the construction.
If the 3 year warranty is important to you then it is probably a good choice for a weekend cruiser. If you want more power, check out the 330HP, which is basically the same engine with Vortec heads and a fairly mild cam.
Chevy High performance did a series of articles on this engine and the mods they did to it. They basically put a Com XE268 cam,Vortec heads and headers and made nearly 400 hp with it.
It does have a cast crank, and there has been some negative coments on the quality of the construction.
If the 3 year warranty is important to you then it is probably a good choice for a weekend cruiser. If you want more power, check out the 330HP, which is basically the same engine with Vortec heads and a fairly mild cam.
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,060
Likes: 33
From: Eagleville PA
Re: 350 LM1 (Smokehouse69)
What is the model name/number for the 330HP you're talking about? I'd like to try to find info on it on the web.
Also, if you had the choice between the LM1 or rebuilding the L48 for the same cost, what you you do?
Thanks!
Also, if you had the choice between the LM1 or rebuilding the L48 for the same cost, what you you do?
Thanks!
Pro
Joined: Jun 2000
Posts: 569
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From: phoenix az
Re: 350 LM1 (adamw1979)
forget about LM1 or L48, what you have is a chevy 350. For something like $600.00 you can get a 383 kit with a new crank, rods and pistons. With about $300.00 in basic machining and $100.00 for balancing you could have a good stroker bottom end. For $650.00 you can get a set of 2.02 Torquers. Slap a $100.00 worth of basic port work and they're pretty good heads. You already have the basics in your L48. Why not just rebuild it to your desired outcome. A ZZ3 will easily be more expensive than making a decent 383 out of your motor.
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,060
Likes: 33
From: Eagleville PA
Re: 350 LM1 (BubbaJJ)
As far as converting my L48 to have more HP, I have to be concerned with keeping it withing Legal Emission limits in PA. Can I do those mods and still keep it legal for emissions?
Le Mans Master
Joined: Aug 2000
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From: Semper ubi, sub ubi
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Re: 350 LM1 (adamw1979)
Check out this place, http://www.sdpc2000.com/cart.asp?act...start&catid=63
They are just one of many selling these things, in fact you can probably order just about any of these engines from a GM dealer. Your local Chevy parts guy might make you a deal.
They are just one of many selling these things, in fact you can probably order just about any of these engines from a GM dealer. Your local Chevy parts guy might make you a deal.
Le Mans Master
Joined: Nov 1999
Posts: 5,768
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From: San Diego CA
Re: 350 LM1 (adamw1979)
What is the model name/number for the 330HP you're talking about? I'd like to try to find info on it on the web.
Also, if you had the choice between the LM1 or rebuilding the L48 for the same cost, what you you do?
Thanks!
Also, if you had the choice between the LM1 or rebuilding the L48 for the same cost, what you you do?
Thanks!
Bubba makes a good point, if you have the time, inclination and ability you can build a motor that will easily compete, or surpass, with the crates. The beauty of the crates is:
1) a warantee
2) weekend swap (no time spent rebuilding)
3)excellent chance of success (i.e. motor not grenading on you while you break in cam)
