Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Conversions & Hybrids
Sign in using an external account
Register Forgot Password?
Search

Conversions & Hybrids
LSX Engines in Non-LSX Vehicles
Sponsored by
Don Hardy Race Cars

looking for LS swap for 73 Lemans (A-body)

Reply
 
Thread Tools Search this Thread
Old 05-02-2012, 01:19 PM   #1
TECH Apprentice
 
Trader Rating: 3
Join Date: Jan 2002
Location: St. Charles, IL
Posts: 396
Default looking for LS swap for 73 Lemans (A-body)

The A-body sticky was for only for up to 1972. Not sure on the details on the 1973 Pontiac Lemans A-body. Anybody do a swap on one of these or know what it would be similar to? I just picked up the car, so I am trying to see what parts are out there.
thank you!
__________________
00 SS A4 to M6 conversion AX/road racing Track ***** bolt on car..w/ 108k miles!---Finially finished ***2009, 2010, 2011, 2012 & 2013 Midwestern Council AM class champ!
00' M6 Z28 M6 to A4 with SS4000 and 6.0L LQ9 EPS Cam, TEA 225 heads, Speed Inc tuned- 483rwhp/431 rwtq locked-11.17 @ 120.7 1.50 60'
06 GTO, 12.5@113 TR224 cam,hdrs,exhaust,CAI,Tune-SOLD
95 Imp, 13.28@101 cam,hdrs,exhaust,3.73,CAI,Stall, Tune
11' GMC Sierra crew cab 4x4 with 6.2L
MBC Racing is offline   Reply With Quote
Old 05-02-2012, 04:53 PM   #2
On The Tree
 
Trader Rating: 5
Join Date: Mar 2010
Location: Maine
Posts: 126
Default

im currently working on a swap for my 74 chevelle, should be pretty much the same. there was another thread started about a 73 buick but i havent seen any updates in a long time. hope the info helps.

74 chevelle/malibu all aluminum 5.3 swap
__________________

-HorsePower
1974 Chevelle Malibu Classic 5.3 swap (in progress)
2005 Dodge Magnum R/T AWD 5.7 HEMI, CAI and Cherry Bomb Cat back, Diablo Tuning
brian.harmon1974 is offline   Reply With Quote
Old 05-02-2012, 09:12 PM   #3
TECH Senior Member
 
bczee's Avatar
 
Trader Rating: 12
Join Date: Jan 2006
Location: Concord, CA
Posts: 6,505
Default

I am pretty sure the 73 - 77 frame were close but different in a few area. But nothing really to worry about for Swapping in an newer Gen III/IV engine. The ins and outs of the A-body swap would still be pretty close to the same.

Improved or redesigned bumper mount areas, added body mounts, re-enforced side frames, etc.. but same basic frame.

Anything different would be a minor adjustement to the swaping details.

BC
__________________
71' Chevelle, 99 LS1/Viper T56,Full Hotchkis TVS,Custom Cowl Induction CAI
84' Z-28 350/T5
88' C4 Coupe L98/A4
71' Nova - LS1/4L60E , Full Hotchkis TVS Suspension
79' G-30 SWB 4X4 Van, 400cid / TH350 NP205
48' Ford F-1 1/2 Ton Truck, Stock 6cyc/3sp
bczee is offline   Reply With Quote
Old 05-03-2012, 02:14 PM   #4
TECH Apprentice
 
Trader Rating: 3
Join Date: Jan 2002
Location: St. Charles, IL
Posts: 396
Default

Quote:
Originally Posted by brian.harmon1974 View Post
im currently working on a swap for my 74 chevelle, should be pretty much the same. there was another thread started about a 73 buick but i havent seen any updates in a long time. hope the info helps.

74 chevelle/malibu all aluminum 5.3 swap
I subscribed and asked a question.... which motor mounts did you use?
thanks
__________________
00 SS A4 to M6 conversion AX/road racing Track ***** bolt on car..w/ 108k miles!---Finially finished ***2009, 2010, 2011, 2012 & 2013 Midwestern Council AM class champ!
00' M6 Z28 M6 to A4 with SS4000 and 6.0L LQ9 EPS Cam, TEA 225 heads, Speed Inc tuned- 483rwhp/431 rwtq locked-11.17 @ 120.7 1.50 60'
06 GTO, 12.5@113 TR224 cam,hdrs,exhaust,CAI,Tune-SOLD
95 Imp, 13.28@101 cam,hdrs,exhaust,3.73,CAI,Stall, Tune
11' GMC Sierra crew cab 4x4 with 6.2L
MBC Racing is offline   Reply With Quote
Old 05-03-2012, 08:22 PM   #5
TECH Fanatic
 
99VetteFRC's Avatar
 
Trader Rating: 0
Join Date: Oct 2011
Location: Felton Pa
Posts: 1,353
Send a message via AIM to 99VetteFRC
Default

I will let you guys know if you are looking for a good rear... Find a 8.5" rear out of a mid 90's Caprice/Impala SS rear. There is a pull it yourself junkyard around here that has several Balto City taxis/expolice cars that have this rear for about $100. Bolt it right in, has posi and nice gears.
__________________

99 Vette- Corsa Exhaust, Air Filter, C6 Z06 wheels
70 Chevelle- Twin Turbos, LS1, T56, 12bolt 4.10 gears (Dyno Tuned!) 457hp@5500 534ft/lbs @ 4000
12 Silverado 5.3L auto.
http://ls1tech.com/forums/conversion...4-8-turbo.html
See My youtube videos here!
http://www.youtube.com/user/99VetteFRC?feature=mhee
99VetteFRC is offline   Reply With Quote
Old 05-04-2012, 09:24 AM   #6
TECH Apprentice
 
Trader Rating: 3
Join Date: Jan 2002
Location: St. Charles, IL
Posts: 396
Default

Quote:
Originally Posted by 99VetteFRC View Post
I will let you guys know if you are looking for a good rear... Find a 8.5" rear out of a mid 90's Caprice/Impala SS rear. There is a pull it yourself junkyard around here that has several Balto City taxis/expolice cars that have this rear for about $100. Bolt it right in, has posi and nice gears.
Thanks for the info. I have a 95 Impala with that rear. There is however a difference in the width on a Caprice, Impala and 9C1 police car. Also, the bolt pattern is a 5 on 5 compared to 5 on 4.75. Do the original axles fit in the caprice rear end? A better choice would be a buick road master rear end with the trailer package. It should come with 3.42 gears instead of the 2.93 or 3.08 gears. I think that package also was avaialble in the fleetwood, but not 100% certain...

I believe my car has a built one already, so I will have to see. As for the Imp rears, you can't rebuild the posi, so we generally go with the Eaton posi as a replacement. The stock one didn't last long in my Imp before I was getting the one tire fire. The Eaton is whats in my Imp now with 3.73 gears.
__________________
00 SS A4 to M6 conversion AX/road racing Track ***** bolt on car..w/ 108k miles!---Finially finished ***2009, 2010, 2011, 2012 & 2013 Midwestern Council AM class champ!
00' M6 Z28 M6 to A4 with SS4000 and 6.0L LQ9 EPS Cam, TEA 225 heads, Speed Inc tuned- 483rwhp/431 rwtq locked-11.17 @ 120.7 1.50 60'
06 GTO, 12.5@113 TR224 cam,hdrs,exhaust,CAI,Tune-SOLD
95 Imp, 13.28@101 cam,hdrs,exhaust,3.73,CAI,Stall, Tune
11' GMC Sierra crew cab 4x4 with 6.2L
MBC Racing is offline   Reply With Quote
Old 05-04-2012, 09:24 AM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Crank but no start on A-body ls swap kainedogg Conversions & Hybrids 13 09-26-2013 08:13 PM
4th gen seats in A-body kainedogg Conversions & Hybrids 1 02-21-2013 10:49 AM
Springs for an LS1 A-body GearBanginFourBanger Conversions & Hybrids 6 02-02-2013 12:13 AM
LS1 radiatior in 69 GTO borrone821 Conversions & Hybrids 12 11-28-2011 06:02 AM
Which motor mount kit for my A-body? QSPres Conversions & Hybrids 13 02-10-2007 12:35 PM


Tags
1973, 60, 73, 9c1, axle, body, end, engine, fit, gen, iii, impala, lemans, ls, rear, swap


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



Join Ls1Tech

All times are GMT -5. The time now is 12:30 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details