Well Im happy with my car but I would like some more power under my hood . So I talked my fater into swapping my l36 for a l67 . Before we start I have one or two questions to ask . My father says we should find a smashed bonneville or park ave ultra . hopefully a rear or side collison . I need a donor car to rip out the engine transmission wiring harness etc. My question is what would be the closet car to swap out a l67 to my Oldsmobile LSS so I dont have to do many modifications ? And do i have to upgreade the exhaust system to accept the new motor?


thnks in advance for all your help guys.

Not sure, but I think your wheelbase is the same. Bonneville should be added to your donor list. Especially if you want the best gear ratio

You need the engine, trans, entire engine wiring harness, and PCM from the donor year. If you want reliability, get a 96 donor car with the 4T60E. If you want moddability, get 97 or later.

Upgrade your exhaust to at least 2.5", from the donor car if possible, unless your exhaust is already 2.5".

Add an aftermarket boost gauge.

www.L67swap.com is a sister-site. They can be very helpful with this kind of thing.

Thanks alot willwren hopefully I get a few ponies out of my oldsmobile .

Try to get entire engine frame drop out out of a LSS, SSEI or PA Ultra or even the rare 98 Touring Sedan. Then you will have everything you need to go + computor of course. Fastest way to transplant on these cars is complete frame with every thing still all bolted up and hooked up. Exhaust is probably larger for L67, Im not sure but I should know I have both sitting in driveway. If I think of it I'll take a look and my calipers.

Stay away from Grand Prix donor. You will be chasing down odds and ends and be nickled and dimed to death.

There is some issue with the key , pass key, anti theft thingy, what ever that "chip" is thats on our keys. Dont know alot about it except that it has givin some guys a pretty good case.

All L67'* come with the 2.97 final drives.

Or you could just "just" thats funny, put a CSC on your L36. Then you would smoke all of us. - - - - plus your non HD tranny

Is there a CSC kit for my lss . would be nice to see something diffrent under the hood. And thanks for the website.

A CSC kit for a Grand Prix should work.

http://zzperformance.com/zzp/product...gal_sc_kit.htm

they dont give them away, I had once thought of this route for my 99 before I got discusted with it.

GEEZ! 3000$ I paid that much for the car. Maybe I should just try to stick with the L67.

I hear ya but L67& 65E HD with all the necessary pieces could be 2000.00+ and then you need to have installed and hooked up and made to run. This could easiely approach 5000.00 with labor.

Cheaper to buy L67 LSS and keep yours for the winter

The Paxton Novi 1000 is $1800 by itself.

You could do some work to your engine and get some more out of that. The L36 goes pretty good when you "put it down". Its got 10.3:1 compression if I remember right or is that the Aurora and the L36 is 9.3:1 ? Anyhow its a well built engine and can be modified. Camshaft and/or higher ratio rockers, headers, intake/filter work, exhaust work you can even get high flow heads. I bet you can get the 35 hp right out of that engine.

I bought mine for $5095. Darn good car and very fast.