Swap stock 305 with a 350 1986 Grand Prix

RDR89

Not-quite-so-new-guy
Jul 25, 2020
28
3
Manassas, VA
What am I looking at for doing this? Short block or long block 350? Do the accessories (alternator, distributer, AC) from the 305 bolt on to the 350 from the 305? Would the motor mounts match up? Will the transmission from the 305 mate up to the 350?
 

565bbchevy

Geezer
Aug 8, 2011
7,730
113
Michigan
As long as the 350 SBC doesn't have some older heads swapped on it that didn't have all of the accessory holes it should be a direct swap.
 

565bbchevy

Geezer
Aug 8, 2011
7,730
113
Michigan
Does short or long block matter, for the drive shaft for instance?
The engine swap has no effect on the driveshaft as long as you are using the same trans.
 

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