5.3L LS1 ????
Thread Starter
Safety Car
Joined: Mar 2000
Posts: 3,581
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From: Springfield VA
5.3L LS1 ????
I just saw an advertisement for a 5.3L (5328cc) all aluminum (block and heads) engine that was called an LS1. Searching the web all I could find was that it had a 96.01 X 92.00mm bore and stroke.
Is this basically a 327 and has anyone heard any performance numbers?
Is this basically a 327 and has anyone heard any performance numbers?
Race Director
Joined: May 2000
Posts: 12,712
Likes: 2,264
Re: 5.3L LS1 ???? (96LT1)
This is a new truck engine that is going in upmarket midsize SUVs.
You should be able to find more info on it at:
http://www.gmpowertrain.com
Duke
You should be able to find more info on it at:
http://www.gmpowertrain.com
Duke
Race Director
Joined: May 2000
Posts: 12,712
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Re: 5.3L LS1 ???? (korvetkeith)
I checked and find they show two iron block/aluminum head 5.3 Vortecs.
Guess there is either an error, or they need to update their info.
The aluminum block 5.3 is identical in specs to the iron block version as far
as I know, except the block material.
Duke
Guess there is either an error, or they need to update their info.
The aluminum block 5.3 is identical in specs to the iron block version as far
as I know, except the block material.
Duke
Thread Starter
Safety Car
Joined: Mar 2000
Posts: 3,581
Likes: 1
From: Springfield VA
Re: 5.3L LS1 ???? (SWCDuke)
Thanks Duke, I appreciate the feedback. I knew there were two versions of the iron block (L59 and LM7), but the LS1 RPO on a 5.3L confused me.
I still haven't found anything out about how this block compares to the LS1 5.7L 350ci. I was hoping to find out if the 5.3 / 5.7 blocks were like the old 327 / 350 where cranks, cams and heads were interchangable.
I still haven't found anything out about how this block compares to the LS1 5.7L 350ci. I was hoping to find out if the 5.3 / 5.7 blocks were like the old 327 / 350 where cranks, cams and heads were interchangable.
Racer
Joined: Jan 2002
Posts: 440
Likes: 2
From: Smithfield NC
Re: 5.3L LS1 ???? (96LT1)
The 5.3 325ci motor(iron version at least)is not as rev happy as the venerable 327.Fbody guys are using milled down versions of the aluminum heads.Ported polished they raise up compresion to 11.5-1 or 12.to 1.
