I pulled a 305 TPI out of my 86 IROC, and plan on putting a 383 TPI back in. I picked up a 350 block and I am building from there. The 305 heads will fit, even after I have them ported, so the valve covers and intake will work. How about the oil pan? and the water pump? Do I need to get some new ones? What stock 350 oil pan will fit in the 86 IROC. I have read on the Board that a stock 350 pan wil accomidate the long strock of a 383. Thanks for the help.

 

Since the 305 and 350 have the same stroke from the factory, I don't see how you would have a problem with the 305 pan.

Now, a 383 being fulfilled by TPI and 305 heads, that's a different story. Mostly the TPI part.

 

I bought a moroso pan for my stroker just because im using a high volume pump and need the extra capacity if your gonna run astock pump youll be fine by some descent heads and dont bother portiing and polishing those 305s

 

Im building a 383 for my 89 RS 9.5 to 1 with AFR heads and Im gonna use the TBI set up. thats good I can use the stock pan from the 305.
can you use a windage tray with a stock F-body pan? like the one out of a 70 LT-1 corvette that wraps around the crank?
if not Im gonna use a canton stock replacement oil pan, its a 5 qt deal but it will accomidate the windage tray.