mfishburn

Hi everyone I just joined the forum. I am 19yrs. old and a college student. I own a '79 Trans am WS6 and a 1972 Chevy C-10. I am currently rebuilding the Trans am. The only thing I don't like about the car is the it has the oldsmibile 403 engine in it. I would like to use this car as my daily driver when it is done. I want to swap in a ls1. I think it would be more efficient and easier to work on. I think it would have better road manner as well. Also I just love the lsx engines. I know it may be costly but I will be building it over time and I will sell the other engine and parts for more money. How hard would it be to swap in a ls1 into my trans am? How do I do it? Does anyone have any information on this swap? I want to know everything I need to know to put this engine in my car. Any information or advice will be appreciated. Thank you

brynnda

iTrader: (5)

its been done before. can i have your 403?

BadGTho

iTrader: (6)

it's been done before... basically, you'll need the motor (complete with harness), a tranny, a crossmember, motor mounts and some other stuff.

i've seen LSx motors in everything from 3rd gen f bodies, to BMWs, to Trucks.... it can definitely be done.

Morpheus

iTrader: (7)

If you want something that's easy to work on, either keep the 403 and build it up or get a Pontiac 400. An LS1 swap into a 2nd gen is VERY expensive. You'll have to get a custom built subframe so that it will fit.

The 403 really has a bad rap. It's not a bad motor, it's just not as buildable as the 400 is. 403's are dirt cheap so you wont get much for if you sell it. They go for around $500-750 pretty regurlary.