how difficult would it be to drop a 350 in my '91 RS. its a four bolt main out of a '79 Suburban. Ive already had my 700 R4 rebuilt for racing so were all set there.

 

This is the oft-discussed "V6 to V8" swap. It ain't exactly easy, but not impossible, obviously. Look over posts on this forum, the details have been spelled out several times (may have to go back a few months).

About the only thing non-typical about your situation is being sure to use a 153-tooth 2-piece rear main seal flexplate. A part intended for '82-85 3rd-gen V8 will do the trick.

Question for you, though: Exactly what TH700 have you had "rebuilt for racing"? Your 3.1 tranny won't work on a V8.

 

It was the stock tranny that i rebuilt. the guy that sold the engine to me said it would work. (sigh)

 

Had a better idea recently. Does anyone know where i can find a wrecked IROC in the SO CAL area. I read somewhere on the internet that a guy did a motor/dash swap out of an IROC into his SC. It seems easier and cheaper. thnx

 

he told you a load of

 

Yea, i figured as much. thats why i think the IROC conversion is such a good idea. everything i need should be there if i find the right one ( not a head on collision )