88 iroc-z lq9 turbo
07-16-2011, 10:04 PM
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88 iroc-z lq9 turbo 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
Last edited by chevy1120; 01-16-2012 at 05:28 PM.
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07-21-2011, 08:49 PM
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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.
07-22-2011, 10:48 AM
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07-22-2011, 11:22 PM
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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?
07-22-2011, 11:46 PM
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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.
07-23-2011, 08:18 AM
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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
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