hi everyone first off id like to say this is my first build so any help i can get would be very helpful my car is a 1988 iroc-z was mostly stock made it to 220,000 miles and the motor/trans was pretty much shot and the fuel pump went up so i thought id strip it and redo the whole thing so far i have a 6.0 lq9 pushed out to a 408 stroker 4" stroke eagle crank and rods diamond low compression went with the l92 oil pan for now im using a 350 turbo trans. im looking for a good set of heads to use for a high hp turbo set up that wont brake the bank

 

block and crank yes its in my room lol

 

pistions

 

rods

 

oil pan

 

the strip down

 

That is gonna be awesome when you finish it.

 

whats high hp to you? 317 heads will hold a good amount of power but something like an afr 225 would be better. I would also look into having them o-ringed.

 

Cool build. Keep us posted

 

like 800-1000 hp

 

thanks guys

 

what does getting them o ringed do?

 

Helps to seal better and hold pressures.

 

does that need to be done at a machine shop?

 

anyone know how to make a blow through carb out of a 750 holly?

 

Yes. Its common for people doing boost type builds for take these extra measures so that you don't have big problems later. Not really such a thing as a budget turbo build. I have had several IROCs and love the way they look so much better than newer Camaros. I think a turbo Iroc would be sick but don't skimp on the build or it will end blowing up on the test run or not making any real power. A race shop that can do dyno pull tunes is almost a must. Guys just doing bolt on turbos without help always end up not turning out so well.

 

http://www.nelsonracingengines.com/a...s/58/tn_31.jpg
http://www.nelsonracingengines.com/a...s/58/tn_44.jpg

 

yeah i dont want cheap parts just trying to find the best deal i can as im only making bout 13g a year im talking to a shop bout doing some stage 3 317 heads any thoughts on them? and any other things i should be doing plz let me know it is my first build and first turbo car so im trying to find out as much as i can b4 i start buying parts.......... those are awesome pics is that your camaro?

 

I'd go with a set of stock 317 heads with a good set of dual valve springs. Maybe some mild port work, I wouldn't worry about a stage 2 or 3 head. I make 640rwhp thru a set of stock 241 heads on a stock short block and 11psi. LS heads flow really well for stock heads, better than just about anything else.

 

here is what the shop sent me on prices
Set of used ‘317 GM cylinder head cores with factory 70 cc combustion
chambers. (cleaned and inspected for CNC)
$ 250.00
Stage 2 220cc/87cc (street smart porting) ‘317/LS6 (includes CNC
porting, milling, valve job, assembly, and flow bench testing)
$850.00
Stage 3 245cc/87cc (fully ported) ‘317/LS6 (includes CNC porting,
milling, valve job, assembly, and flow bench testing)
$1,075.00
Fully port and polish ‘317 combustion chambers. $150.00
Manley Race-Master 2.02” intake valves (8) $ 125.00
Manley Severe Duty 1.575” exhaust valves (8) (forced induction specific) $ 200.00
Patriot Gold Xtreme double spring kit #8501 (good to .660” lift) $ 275.00