Ok so I am building a turboed 305 tbi. With vortec heads and ebl flash. I have an ajustable fule presure regulator and bigger injectors so the questions I have are will the stock inurnals hold up for a summer of driveing on 8psi? Till I can get forged ones and what fuel pump should I go with? The turbo kit I am going with is an ebay kit I figured it would be a good start and just swap out the parts over time with name brand ones

Here's the kit. http://www.ebay.com/itm/SBC-283-305-...item2a1740d59b

 

You should find a cheaper kit, to just use the intercooler, oil feed and return lines, and the one header. Then have the rest of the hotside, and coldside custom made, pick up your own quality turbo, (Turbonetics, Garrett, Precision) and go from there. I used to want to try one of them ebay kits, but it just would not be worth it.

Anywho. You could pick up an Eagle crank and rods pretty affordably. 400-500 or so for some Eagle H beams rated to 700 horsepower or more, 495 for an internally balanced 4340 3.750" stroker crank rated to 1,500 horsepower.. And it wouldn't be too bad to have JE whip you up some custom forged pistons. Most of the parts for probably like 1,500 or so. I'd do it first.

Sounds like a neat build though. Kind of nice to see someone wanting to mess with a 305.

 

Sounds good but this winter I don't really have the ability to get those parts out of the motor to put new ones in so I was just wondering if the stock inturnals would hold up for the summer of driveing the motor has about 84000 miles on it so if I'm easy on the gas will they hold up till next winter when I can pull the motor and do the inturnals?

 

i'm getting ready to start buying parts myself for a turbo'd 305 . i
'm also going with vortec heads an the ebl flash i'm gonna use a lt4 hotcam . i was messing around with this turbo calculater http://www.squirrelpf.com/turbocalc/ an it looks like a pair of gt2876 r's would hit the sweet spot for this motor . as far as how long it will last depends on many factors . tune , miles , how much you abuse it an what kind of shape it's in already .

 

the motor has always been taken care of and has about 84000 miles on it I don't plan on beating on the motor at least not till I can get the forged inturnals. But what fuel pump should I get I was looking at bbk and holley in tank pumps that flow 255lph (67gph) with an afpr and injectors from a 350 would that be abel to suport the turbo?

 

i'm a fan of walboro myself thats what i'm going with . an aeromotive 1-1 fuel pressure regulater . what intake are you gonna use ? i'm gonna do mine in stages . first the ebl flash an learn how that works on a stock motor then add the heads an cam an get that tune down then add forged internals an the turbo's . i think i'll have less chance of a bad tune that way .

 

Yeah I'm just going to pick up a vortec intake manifold from the junk yard and clean it up but the ebl flash is awsome I like it it opens up the motor really well

 

so you already have the ebl flash ?

 

Yeah I have the ebl flash

 

i'm gonna order one in jan . from what i've read these motors can handle 10 lbs of boost with a good tune . just be carefull when tuning an you should be ok . check out street lethal's threads he seems to be the 305 turbo guru on here

 

yah but his is a TPI 305, which doesn't have the peanut cam and swirl port heads. He's probably done some other stuff to it as well. A bone stock LO3 TBI 5.0 V8 is too restrictive to be able to make effective use of forced induction.

 

Yeah but my motor won't be bone stock for the turbo its geting vortec heads and hopfuly an lt1 cam if my buddy gets his new 350

 

If you don't really get on it, then you'll never get to 8 psi anyways. Plus, what's the point of going through with boosting the motor if you aren't going to beat on it?

 

i was talking to a friend thats gonna help me do my rebuild an it looks like it should be sometime in april . i can't wait to get more poower . i'm just curious how much hp i'll get out of the vortec heads an lt4 cam an headers . i'm gonna gonna play with that for awhile before adding turbo's . i feel like a kid in a toy store .lol

 

If you plan on using a tubo your pretty much gonna have to rebuild the engine. That mean heads, cam, throttle body, and a new intake manifold. Perferambly an Edlebrok performer rpm intake. you'll also need to completely redo the exhaust and I'm not sure where your planing to mount the turbo/tubos.

 

I do want to drive the caf but I don't plan on beating on it till I can get the forged inturnals next winter

 

I took out my a\c and smog pump so there is plenty of room for the turbo and the heads are getting redone before they go on