doug791

Let me answer your questions to the best of my understanding of them and knowledge. A 305-350 swap isnt too hard to do it does bolt right in but i think you need a few little things but nothing too expensive. IMO unless you get a 350 for cheap its a waste of time. Id just buy a 383 short block and start modding from there if your gonna go for power. What else umm yeah the wheels/rear end thing in a lot of places (like in ontario) its against the law to have your wheels sticking out of the fenders (yay for custom fender flares) and you have to be careful if your going with a 3rd gen rear end because the 90+ had 10 bolts that are super weak and the 89 down had 9 bolts where parts are expensive for. IMO again its cost prohibitive to purchase these unless it can be done for cheap id rather wait save up and buy something good like a ford 9 or a moser 12 and not have to worry about it ever again.

keep the questions about the car coming were always happy to help.

NOTE: yeah J's comment put me flat on my back.....definitly get some sfcs!!!! btw J what sfc's are you using?

82355

Not all pre 90's have Borg Warner 9 bolts. Yes you can use a 350 with the 305 TBI, but it helps if you swap to 350 or 454 injectors, and a custom PROM (or one from a 350 Caprice TBI), it all depends on how radical you get.

Martin

IZ28

Yup, the BW 9-Bolt is definetly good, it's just that the prices for them aren't.

Smooothie119

yup, and when u break them, the prices still aren't good

chevyman502bb

i cant to a 383 short block cause im only 16 and have no income........i really do wunna do a 350 but i can only get a cheap one....my couzin rebuilds engine for a living and he can definatly help me out......only thing im worried about (305 to 350) is the injection difference.....i dont know too much about this but i need to know what problems i could expect....im not sure u guys know what i mean.........

im worried about changing my wire harness in general


sorry im not explaining it very well but its the best i can do.......thanx

chevyman502bb

btw....if CHEAP is the word in this case.....i have an old station wagon with a 350 in it....lol

chevyman502bb

better explained---could i just take the injected TB off of the 305 and pop it onto the 350?

chevyman502bb

any1?

82355

Yes you can use the 305 TBI on a 350, just swap over all the sensors and switches and the intake manifold.

Martin

chevyman502bb

thanx alot for answering my question......one more q...would any 305 heads work on mine? if i cant do the swap for some reason ill use the 305.....all i need for it is heads so i need to know which will work...thanx

82355

Yes, any 305 head will work, if you use a 305 Vortec head, you will need a Vortec specific intake though. Also pre '87 Heads don't have the canted center intake bolts but that is easy to remedy by drilling out the bolt holes.

Martin

chevyman502bb

ok...so basicly any post 87 non vortech head will pop right on?

82355

Well yeah, but don't rule out earlier heads, it is a very simple modification, requiring a drill and a drill bit.

Martin

chevyman502bb

so the only mod would be to drill a hole in the center of the head? no taping threads or anything?

82355

No drilling four holes in the intake. More like elongating actually.

Martin