That GM Goodwrech 350, with like 250 hp or something like that, says its only good up to 1985 cars. Why's that? I was thinking about putting it in my car...it would swap in right?

 

You can install it, but there are a few differences.

The crankshaft is of the two-piece rear main seal design, meaning the flexplate it would require is different from what you have. A 153-tooth for '82-'85 3rd gen would be the ticket.

The intake manifold bolt pattern is slightly different in the angle used for the center two bolts on each side. Either get an intake for '86-earlier (the most common ones out there), or elongate those holes in your manifold so you can get those bolts in.

The valve covers will be of the perimeter bolt design, but that's not an issue unless you're worried about appearances.

The compression of that engine is lower (8.5:1) than your 305 (9.5:1). Not a real issue, but does lower power.

I have that engine in my '84 full-size van, which we use to pull a 2-horse trailer. 60k miles, runs as well as it did when it was put in. If the kids ever give up the horse stuff, that shortblock may find itself under the heads currently in the Camaro, and the TH700 in the '57...

 

Do a search on the L05 P/N 12513151, it is also an option.

 

Like Flyway190 I just put the Caprice engine (12513151) in my 83 Malibu wagon. It runs great, smooth and more power than my old 305. I had to get a new flexplate, which you should not have to do and you could use your old intake. Look at this at Pace, www.paceparts.com/page.asp?id=158 . I put a carb on the engine that was rebuilt by Jet Performance. The carb is awsome except for now my lockup convertor can't decide whether or not to stay engaged at 35-45 mph. Instant umph, no lag from the carb. I got my engine from Sallee Chevy. They said that it was warrantied for 3 years reguardless what I put it in, whereas other places said only one year. Barton