Well, i dunno, this is going to seem pointless to some of you.
But here it go's, bare with me.
i have access to many stock running 305s who don't?
i was just brain storming around.
Lets say i take a stock 305 block everything checks out fine. crank, rods, pistons, etc, then re-ring it put new bearings and APR the mains and rods. then i go and slap on some 96 vortec 350 heads. which should give me about 7 to 1. Then a TPI setup, on top of that a turbocharger or supercharger.
now granite its a pretty weak block but is this a doable project or do i sound like another one of those newbies that thinks 305s can crank out 600+hp. because i don't want to sound like one. but tell me what you guys think, can i do this? if not all move on.. like i said just brain storming here. i would also like to know how do you formulate PSI into compression? like 1 PSI well give you so much more compression. how do you formulate that? and how much PSI can you pump on a stock bottom end with out putting to much stress on it?
and also what about the cams i hear many things! don't run rollers something with the elapse and valve timing, i know you can still run roller. but thats what i just heard with my qustion above. what type of cam would best suite a forced inducted engine?

 

600hp i think would be a strech but i'd go for it anywho...

 

im not looking for a 600hp engine! something around the 330 - 400 hp range
:shrug:

 

i'd say 350-400hp should be fairly ez

carcraft got 325 na hp out of a stock 305 shortblock a few years ago with vortec heads

 

there's a chart about a 3rd down the page

http://www.holley.com/HiOctn/TechSer...fo/SCTech.html

 

take that 305, buy a long chain, a boat and use it as an anchor. 350 > 305 in every category

 

I'd take a buick turbo 6 over a 350..

I've done the JY 305 - 350 head thing. 300-350 would be about right considering your starting with a 190 horse motor.

But if you have a bunch of parts doing nothing.. go for it. the worse that can happen is grenading it all... <G> Bob

 

I dont know why every one bad mouths the 305. Its a great motor. When we use to trans am race we used 305's. (but they were bored to 310 ci) We were making 700 hp naturaly asperated. Of corse our motors were spendy but still its posible.

 

Not exactly the same. Stock 305s have puny bores and 3.48 strokes. Your Trans Am motors most likely had 4.125 bores and 3 inch stroke, or something similar. Stock 305s are junk and not worth the time spent on them.

 

but, the small bore helps with control burn under higher boost. I would go for it. although I would just find a good running 305 (check cyl psi on all 8 )

skip the vortech heads unless you want to buy a $$$ tpi lower intake to fit them. (just find some stock l98 heads cheap!! or a similar head) stay far away from swirlports.

turbocharge it and see how long it lasts. I would bet if you stay in the 300-350hp range it will last a very long full life unless you take the rpms sky high

the bottom end and block will take the same abuse as the same style 350
the only problem the 305s have is there small bore, if your boosting who cares. it's just fun