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317's for 600rwhp?

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Old Nov 18, 2009 | 11:29 PM
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Default 317's for 600rwhp?

Would the stock 6.0l 317's (with good springs) be safe to use for my goal of 600rwhp on my 383, stalled-A4, combo. Lookin to go front mount single turbo @ 76mm-possibly an 88mm. I would like to only push about 15-20#'s for this goal, or less if possible.

The short block is a forged and studded 383 with a 8cc dished pistons in a Ls1 alum. block. I will be getting a custom grind cam for the application. So what do you think?

Hell yea!....or..... I don't think sooo!
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Old Nov 19, 2009 | 12:02 AM
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Yes you can use the 317's for 600hp. Also you won't need 15-20 #'s to hit that goal, more like 10 #'s on a 383 ci.
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Old Nov 19, 2009 | 12:02 AM
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The 317's should be fine at that power level.

If I remember correctly Superman09 used 317s on his 347 APS car and made 666RWHP on EPP's mustang dyno threw an auto at 14PSI.
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Old Nov 19, 2009 | 12:20 AM
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I use 317s.... 12#.... meth.....stock bottom end... through 9".... when it was a M6.... 651rwhp.
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Old Nov 19, 2009 | 12:23 AM
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5.3 with 317s...14psi.... no meth.... 528hp at 5500rpm
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Old Nov 19, 2009 | 12:26 AM
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Ported 317's, aftermarket larger valves? Or stock?

very interested... thanks for the input...
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Old Nov 19, 2009 | 12:36 AM
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Originally Posted by 383vert
Ported 317's, aftermarket larger valves? Or stock?

very interested... thanks for the input...
All ya need is stock... just throw some good springs on em and youll be good to go. You wont need all that boost either... youll hit your goal with WAY less boost than youre planning.
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Old Nov 19, 2009 | 08:13 AM
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2005 6.0 w/317's, small cam, mpt76 front mount turbo, 14 deg timing, 9psi - 545rwhp
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Old Nov 19, 2009 | 01:44 PM
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stock 317 with good springs 347 CI 10 psi 3800 stall 4l80 and a 8.8 car makes 550
and im procharged
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Old Nov 19, 2009 | 02:11 PM
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I have a little old T67 turbo on my stock LS1 bottom with a big-ish cam and 317 heads through m6 and stock rear.. 10psi makin 560
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Old Nov 19, 2009 | 02:15 PM
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I have Patriot LQ9 heads on a Procharged D1SC stock 347 CI with 224/228 114 LSA with Yank py3400 to Performabuilt Level III 4LE60 to Moser 12 bolt. LS6 intake.

Safe 16 degree SD tune - 4.38 8 rib pulley at around 9 lbs of boost. AlkyControl pump is still disconnected.

565 rwhp on a Mustang Dyno.

Can get more with a smaller pulley (4.25) but still have stock pistons - so 565 rwhp is as far as I went for now until I forge the block or go with a forged 370.

600 rwhp is SMALL horsepower now days with FI with simple setups.
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Old Nov 19, 2009 | 02:17 PM
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Sweet... thanks for the info.... you are all awesome...good stuff
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Old Nov 19, 2009 | 02:34 PM
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600 is no problem.
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Old Nov 19, 2009 | 05:12 PM
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stock 346 with stock 317's, patriot dual springs and ls6 cam. 9#'s of boost and 16-17 degrees timing made 542
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Old Nov 20, 2009 | 04:47 AM
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http://www.exoticperformanceplus.com/hotCars.php?car=70 Bob
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Old Nov 20, 2009 | 06:44 AM
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Daggum! 917 on stock 317s, thats gotta be some kinda record for not lifting heads @ 24psi!
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Old Nov 20, 2009 | 08:47 AM
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wow... 917 w/ a stock head and good springs... I'm sold on that

thanks again guys
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Old Nov 20, 2009 | 08:52 AM
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I pushed north of 900rwhp on my TT 408 GTO with 317s
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Old Nov 20, 2009 | 03:45 PM
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bone stock crank, rods, pistons, block... WCCH 317's 805rwhp on a load dyno... You'll be just fine with them, and the 317's will exceed your goal with the rest of the setup optimized...
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