5.3 or 5.7
Thread Starter
Joined: Oct 2007
Posts: 446
Likes: 1
From: Oakland, California
5.3 or 5.7 Hi, I can get a great deal on a 5.3 LS engine, but wanted to know, is it worth building or should I just wait and get a LS1/6 or LS2? How much power can a 5.3 LS engine handle?
Registered User
Joined: Oct 2009
Posts: 18
Likes: 0
From: San Antonio
Its hard to say whats worth building and whats not without knowing the specifics of the 5.3 you're looking at. I picked a 5.3 for my 84 camaro build because they are plentiful, they are cheap, and all ls components swap over. The 5.3 blocks are essentially an iron version of the LS1, they can actually be bored to about 3.905 safely. Ive heard those iron blocks are capable of supporting 1000+ RWHP. Yes a t56 will bolt up but you will need a LsX flywheel and clutch.
On The Tree
Joined: Feb 2007
Posts: 158
Likes: 0
grab it! In stock form other than rod bolts and a ls6 cam, here is a guy making it work.
http://1320video.com/pinksapp.php
and another:
http://s116.photobucket.com/albums/o...rshortpull.flv
http://1320video.com/pinksapp.php
and another:
http://s116.photobucket.com/albums/o...rshortpull.flv
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Staging Lane
Joined: Sep 2009
Posts: 71
Likes: 0
From: Anchorage, Alaska
http://www.summitracing.com/parts/HUP-HP3795/Application/?prefilter=0
And the spacer should work with both the LS1 5.7 or the LM7 5.3.
Thread Starter
Joined: Oct 2007
Posts: 446
Likes: 1
From: Oakland, California
OK, picked up the motor today and it turns freely and everything. A long block(minus the intake) 5.3L for only $200. The guy said it ran and the reason he was selling it is because he needed the space in his garage and he was into traditional small block Chevy engines. Be prepared for a ton of questions
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TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
This forum is a wealth of knowledge.
Using the search function will help you out a bunch.
The only good thing about the traditional SB chevy motor is, it is cheap to build....but, you get what you pay for.
Your 5.3 should easily take a comparably built "traditional" 350...and get better MPGs (if that makes a difference to you).
Is this going in your '74 Vette??
Using the search function will help you out a bunch.
The only good thing about the traditional SB chevy motor is, it is cheap to build....but, you get what you pay for.
Your 5.3 should easily take a comparably built "traditional" 350...and get better MPGs (if that makes a difference to you).
Is this going in your '74 Vette??
Thread Starter
Joined: Oct 2007
Posts: 446
Likes: 1
From: Oakland, California
This forum is a wealth of knowledge.
Using the search function will help you out a bunch.
The only good thing about the traditional SB chevy motor is, it is cheap to build....but, you get what you pay for.
Your 5.3 should easily take a comparably built "traditional" 350...and get better MPGs (if that makes a difference to you).
Is this going in your '74 Vette??
Using the search function will help you out a bunch.
The only good thing about the traditional SB chevy motor is, it is cheap to build....but, you get what you pay for.
Your 5.3 should easily take a comparably built "traditional" 350...and get better MPGs (if that makes a difference to you).
Is this going in your '74 Vette??
