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71 chevelle LS3 turbo build

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Old 03-20-2010, 06:53 PM
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Default 71 chevelle LS3 turbo build
Heres a few pictures of my build. 1971 Chevelle, ls3, t56.

Motor

Brand new LS3 block
Wiesco boost pistons
Manley Rods
ls7 Cam
ARP head studs
241 heads ported by RPM
SS intake and exhaust oversize valves
60 lb injectors

Turbo Set up

Custom fabed front mount
PTGTS76mm
Tial 44
HKS bov
12-15 lbs of boost







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Old 03-20-2010, 07:59 PM
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Nice engine! Why the 241 heads though? Are they better for boost with that setup?
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Old 03-20-2010, 08:05 PM
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They are full cnc ported and had the part of the heads where the valves seat milled out for lower comp.
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Old 03-20-2010, 08:25 PM
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sweet!!
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Old 03-20-2010, 10:10 PM
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Originally Posted by 71chevellels1
They are full cnc ported and had the part of the heads where the valves seat milled out for lower comp.
I see. Nice build and good luck with it. It will be a nasty ride. A turbo spooling from an old school muscle car will definitely catch people off guard.
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Old 03-25-2010, 11:15 PM
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Got the motor in!!!

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Old 03-26-2010, 12:25 AM
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man thats nice looking set up brother!
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Old 04-07-2010, 11:45 AM
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could u show some pic,s of the alt bracket..
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Old 04-07-2010, 12:52 PM
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That's bad *** I haven't seen that intake b4 looks good
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Old 04-07-2010, 01:25 PM
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any updates?
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Old 04-19-2010, 06:58 PM
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Got most of my hotside done. Waiting my tubing for my wg and i still have to weld in my two 02 bungs. Its all 2.5 Stainless. Let me know what you guys think.







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Old 04-19-2010, 07:08 PM
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looks good. only question i have is, why is the u bend off the drivers header so big? looks like you could take 6" out of it.
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Old 04-19-2010, 08:33 PM
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Well i was trying to make the engine bay look a little less bare because im running no inners but it didint look as i hoped...but it makes everything look more even with the turbo on the opp. side.
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Old 04-20-2010, 07:03 AM
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looks good
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Old 07-01-2010, 04:23 PM
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Few new pics



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Old 07-01-2010, 07:10 PM
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Nice build, May I ask what headers your using?
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Old 07-07-2010, 06:23 PM
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headers are obx for a gm truck i just cut off the flanges and welded v bands. 300 dollar set of turbo manifolds!!!
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Old 07-15-2010, 07:16 PM
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Old 07-16-2010, 11:50 AM
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Looks nice man job well done, Post some pic,s of the dyno pull and all the info up on the pull. Would like to see the chart of the pulls. Again nice job...
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Old 07-16-2010, 12:50 PM
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Anymore pics of the car itself?? I grew up in the passenger side of my dads 71 that he had built.
Loving the build man!

Love these cars!!!!
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