Ls3 conversion - LS1TECH

Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV External Engine
Log In 

Generation IV External Engine
LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories

Ls3 conversion

Thread Tools Search this Thread
Old 08-02-2012, 04:26 PM   #1
Teching In
5BrothersRacing's Avatar
Join Date: Jun 2012
Posts: 8
Default Ls3 conversion

Can I convert a ls1 to an ls3 and if so how do I do it. I am probably gonna start from scratch. So I would love some tips.
5BrothersRacing is offline   Reply With Quote
Old 08-05-2012, 12:16 AM   #2
12 Second Club
iTrader: ( 20 )
litle88's Avatar
Join Date: Jan 2007
Location: Burbank, Illinois
Posts: 2,547

No way not a chance.
You need a bore of 4.065 Ls1's have a 3.8?? Bore.

Of your starting from scratch and want more cubes then just get that block resleaved and go to a bore bigger than an Ls3 then that way you can run an Ls7 head just my .2
01 Ws6,m6, ASC#618 of 1583, PER built forged 416,ArP'd,Morels,LPE Ls3 heads 12-1 comp,FAST 102 by chris1313,N/W 102 Tb,Racetronix F/P,65lb inj,C5r T/C, BTR 243/259 .629/.619 114+3,P/B 10% Ud,Kooks 2" headers,Kooks yp,Dmh dual c/o's,COMPLETE UMI suspension,SLP Torque arm,viperized T56 by wrencher,Textrellia,Moser 9" spooled w/4.11's & 35 spline axles, Koni 4th Gen's,BMR springs,Sjm abs delete,magna flow CB, 542hp/525tq StraightLine Tuned!
litle88 is offline   Reply With Quote
Old 08-06-2012, 07:24 AM   #3
TECH Fanatic
iTrader: ( 9 )
rumblebox's Avatar
Join Date: May 2005
Location: Victoria, TX
Posts: 1,597

I think he means put an LS3 in an LS1 car.

The easiest/cheapest way to do what you want to do would be to use an LQ4/LQ9 with an LS3 top end like i did. It's closer to an L76 than an LS3, but if you can live with 12 fewer cubes, a little less compression, and more weight, it's not a bad idea. Haha
14 CCSB 5.3 - stock until the warranty runs out
-07 Victory Hammer, Dobeck autotuner, Bassani 2:1 exhaust, Lloydz intake
-00 Formula, 6.0, LS3 heads - SOLD
-08 CCSB Silverado - SOLD
-03 ECLB 2500HD 6.0/headers - SOLD
-99 ECSB silverado, 5.3/cam/headers/stall/drop - SOLD

HM3(FMF) - Lima Co. 2010 - 3rd Battalion 7th Marines - Helmand, Afghanistan

Last edited by rumblebox; 08-06-2012 at 07:30 AM.
rumblebox is offline   Reply With Quote

conversion, convert, end, ls1, ls1tech, ls3, make, ro, top, topend, turn

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


All times are GMT -5. The time now is 09:09 PM.