Buick  Forum - Buick Enthusiasts Forums

Buick Forum - Buick Enthusiasts Forums (https://www.buickforum.com/forum/)
-   Regal (1973-2004) (https://www.buickforum.com/forum/regal-1973-2004-23/)
-   -   LT1 engine swap (https://www.buickforum.com/forum/regal-1973-2004-23/lt1-engine-swap-1414/)

imkrister 03-30-2008 01:29 PM

I just bought a 1985 base buick regal. it has the 3.8 v6 in it and i want to
swap the 3.8 with an LT1 engine. My dilemma is i don't know if the stock
transmission will hook up with the LT1 or not? Also with the increased
power the new engine will have will i need to get a beefier transmission and
rear end? I am hoping to spend as little money as possible. I am not trying to
build a drag car just give my car a little more power. Thanks to anyone that
can help me!

samueljackson 03-30-2008 04:56 PM

usually the BOP's (buick, olds, pontiac) will be the same, and chevy will be different. i would believe this to be true with the bellhousing. but you can find a 700r4 or similar for relatively cheap.

imkrister 03-30-2008 05:09 PM

ok thanks. ill will search for a 700r4. what is a good price for one? also will the increased power tear up my rear end? thanks for the advice it has gotten me goin on this project!

samueljackson 03-30-2008 08:41 PM



you could probably find a junk yard trans for 200-400.


do you have the engine already?

imkrister 03-31-2008 03:42 PM

no i dont already have the engine. the more i think about it i dont think im gunna get the lt1 solely because of how much work i will be. i am looking at the gm goodwrench engine because it is fairly cheap and a new transmission for it would not cost more than 800 dollars. but if you have any comments concerns or suggestions i am open to anything. thanks!

imkrister 03-31-2008 05:29 PM



also i was wondering if the base 85 buick regal came with a th350 or th400 transmission in it because then that engine would bolt right in thanks again for all the help!

samueljackson 03-31-2008 08:51 PM



is there any issus with the current engine? and if you have a line on a good lt1, are you by chance in the michigan area?


and yes a 350 or 400 trans would bolt up to the frame no problem. i think the issue would come up if you try to mate a chevy bellhousing to aB.O.P. bellhousing. but then, there were universal bellhousing tranmissions too. they are a little harder to find though

imkrister 04-03-2008 11:20 AM



yeah the engine it came with has a multitude of problems and has 135k on it so it defanitly needs replacing and the rest of the car is in emaculate shape so i dont want to just get a new car. and no im in virginia and the lt1 was for 1000 but i can look deeper into it if you want me to the guy might be willing to ship it

samueljackson 04-03-2008 03:37 PM



thank you, but for 1000, no thanks. i think i found a good core motor.


http://detroit.craigslist.org/pts/627802272.html[img]smileys/smiley2.gif[/img]

imkrister 04-03-2008 04:28 PM

yeah looks good to me what are you gunna put it in?


All times are GMT -5. The time now is 03:17 PM.


© 2024 MH Sub I, LLC dba Internet Brands