LSX swap into a 83 Caddy Fleetwood brougham
#1
LSX swap into a 83 Caddy Fleetwood brougham
Has anyone swapped an LS engine into a 1983 Cadillac 2 door Fleetwood brougham D-body? What LS engine will move this 5000 pound Caddy? I was going to install a 1996 Impala SS LT1 drivetrain but after further research and becoming a member here in this forum, I'm 100% convinced that an LS drivetrain is the way to go. I live in Long beach, CA. Any info. on a shop that does these type of conversions will be very helpful. Thanks
#3
TECH Addict
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If it is / was a 4100 powered car it was only 140HP stock - when they ran properly... Since the lowest rated Gen III engine is nearly double that with tons more torque on a bad day I would say any would be an excellent choice.
From the swap angle, the frame is similar to the mid 1990's Caprices and I know there are some swaps for those around. The main concerns I have is if the Gen III AC could be used without notching the frame and how hard clearing the AC / Heat box on the firewall would be. If you have decent fabrication skills modding the frame is not even an issue. You may have to relocate the coils for good heater box clearance but that is easy as well. Every one of those cars I have worked on had a dual pattern bell housing so you can keep your transmission. Hood clearance shouldn't be an issue so you could keep the truck intake and accessory routing if you place the engine properly. Beyond that, it shouldn't be a problem.
Read the sticky about budget swaps by MeanYellowZ at the top of this forum for details.
From the swap angle, the frame is similar to the mid 1990's Caprices and I know there are some swaps for those around. The main concerns I have is if the Gen III AC could be used without notching the frame and how hard clearing the AC / Heat box on the firewall would be. If you have decent fabrication skills modding the frame is not even an issue. You may have to relocate the coils for good heater box clearance but that is easy as well. Every one of those cars I have worked on had a dual pattern bell housing so you can keep your transmission. Hood clearance shouldn't be an issue so you could keep the truck intake and accessory routing if you place the engine properly. Beyond that, it shouldn't be a problem.
Read the sticky about budget swaps by MeanYellowZ at the top of this forum for details.
#8
Has anyone swapped an LS engine into a 1983 Cadillac 2 door Fleetwood brougham D-body? What LS engine will move this 5000 pound Caddy? I was going to install a 1996 Impala SS LT1 drivetrain but after further research and becoming a member here in this forum, I'm 100% convinced that an LS drivetrain is the way to go. I live in Long beach, CA. Any info. on a shop that does these type of conversions will be very helpful. Thanks
#9
Thanks deuce4935. checked out your username but did not find a write up on your conversion. S&P adapters are for the motor mounts correct? Are these adaptors good for any LSX engines. When i order the adapters from s&p, what should I ask for. As for a tranny, I will not use my stock tranny. Will I need a crossmember for the tranny? How about the wiring kit? Need as much info. as I can for this swap to go in with no major issues. If cost turns out to be a factor, can I install a 94-97 LT1/LT4 drivetrain from a corvette, camero, firebird, caprice, fleetwood , or buick roadmaster? Thanks for all your info.
#10
Thanks deuce4935. checked out your username but did not find a write up on your conversion. S&P adapters are for the motor mounts correct? Are these adaptors good for any LSX engines. When i order the adapters from s&p, what should I ask for. As for a tranny, I will not use my stock tranny. Will I need a crossmember for the tranny? How about the wiring kit? Need as much info. as I can for this swap to go in with no major issues. If cost turns out to be a factor, can I install a 94-97 LT1/LT4 drivetrain from a corvette, camero, firebird, caprice, fleetwood , or buick roadmaster? Thanks for all your info.
#13
TECH Addict
iTrader: (2)
I didn't see you were in Cali... I don't know squat on the emissions thing. Ironically the used Gen III engine probably has better smog numbers than the original in new condition, especially if it was a 4100.
Good luck! I think this would be a cool pimp mobile.
#14
The tranny I have is a THM200r4. What tranny can I install without any modifications. Also, what about the rear differential. The one I have now is a 2.56(I think this is what I have but the 1983 specs for my deville according to GM is a 3.42 gear ratio). I was thinking of putting one from a 1996 Impala ss with a gear ration of 3.08 limited slip. Any suggestions will help. Thanks
#15
I havent started my swap yet as im collecting parts and recently laid off, but i think you should consider using b-body swap info. I wont start taking pics till im thru collecting parts, but i have a 95 caprice 3.23 geared posi, Lq9 & 60e, and f-body longtubes and my 79 triple black 88k mile coupe deville. Im going to do (i hope) some minor modding to a 95 caprice dual exhaust x-member. This x-member fit in my 79 caprice coupe with very little mods. I've never swapped a gen III or IV, but im not the least bit intimidated. Reading is fundamental as is searching. Now if i could get a job, i could afford some L92 heads, ls3 intake, ported throttle and Pat G cam and a lil yank !!! G L with the swap
Almost forgot; also follow Roarrr as he builds his b-body.
Almost forgot; also follow Roarrr as he builds his b-body.
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Im not trying to be a **** but i suggest reading and searching. It does'nt even have to be a d or b-body thread, but theres tons of useful information that you NEED to be aware of. 2 x for what gofast said about reading Mean Yellow Z' budget swap thread.