Post up some pics of your biarritz. I love those and found it to be one of cadillacs best 80s designs (I'm torn between it and the FWB as to which one was caddys best design in the 80s)Originally Posted by LeaLEllis
With the stock 200r4 you have, I would recommend a smog era olds 350 or a smog era chevy 350. With either engine, I would keep it bone stock.
I'm currently swapping an '87 chevy 350 into my 86 fleetwood brougham (hasn't been as "direct swap" as I would have liked, but everything has been rather easy to make fit.)
Given you're keeping the stock trans, you'd need to allot about 2-3k if you are paying someone else to do the labor. (theres a ton of miscellaneous stuff that will pop up.)
As for a donor engine, expect to pay 350- 800. If you can buy a running donor vehicle- do so. Besides letting you test it out, it allows you to get most everything you'd need as far as accessories, wiring, etc. I bought an 87 silverado with a fried trans, alot of rust, and a really strong 350 for 650 and drove it home in 1st gear.