Which pistons - Chevy and GMC Duramax Diesel Forum

06-07 LBZ & LLY Performance Parts Discussion Discussion of Performance Parts For the 06-07.5 LBZ/LLY Duramax Trucks No Advertising

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post #1 of 39 (permalink) Old 12-09-2012, 02:38 PM Thread Starter
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Which pistons

Need some opinions here guys. I'm building a new race motor for my white Lbz. R&R rods, Hamilton race cam,pushrods, springs, SoCal dampner, billet flex plate, billet main caps, SoCal girdle, fully done heads, etc. all being built by cam at adrenaline in Shelley Idaho.

I am wanting to go forged but and still gonna drive the truck every now and again on the street to class and to mess around. Cam has a set of mahle forged in colbys truck with 40k plus on them.

Should i do mahle forged, fingers cast or fingers forged?


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post #2 of 39 (permalink) Old 12-09-2012, 03:02 PM
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Do fingers oval pistons!


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post #3 of 39 (permalink) Old 12-09-2012, 03:06 PM Thread Starter
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Forged?


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Blackout :06 GMC lbz 4x4 Built motor, HSP twins, DDP Injectors, Self built trans 11.68@118.5
Over Built :07 Chevy lbz 4x4 Caged and built 10.42@134
The Car: 2014 Chevy Cruze 2.0 Diesel
Special thanks to: Mike L, Gtrippin, IdahoRob, Dmaxstore, HSP, ISSPRO, Yukon, Airdog

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post #4 of 39 (permalink) Old 12-09-2012, 03:09 PM
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Shit??????? That's above my pay grade!!


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post #5 of 39 (permalink) Old 12-09-2012, 03:16 PM Thread Starter
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Hahah I think i know what I'm gonna do but figured I'd ask for some opinions


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Over Built :07 Chevy lbz 4x4 Caged and built 10.42@134
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Special thanks to: Mike L, Gtrippin, IdahoRob, Dmaxstore, HSP, ISSPRO, Yukon, Airdog

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post #6 of 39 (permalink) Old 12-09-2012, 03:24 PM
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Are the Mahle forged really over 2K a piston? Just googled it and that's what I was getting.

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post #7 of 39 (permalink) Old 12-09-2012, 03:31 PM
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Looks like the Fingers cast pistons have been holding up pretty well. Mark has some pretty impressive numbers on them so far. If you are going to run enough miles to need to tear it down and re-ring it, then may as well give the cast a go and see how they do.

I know you're shooting for pretty big numbers, but big enough to really need forged?

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post #8 of 39 (permalink) Old 12-09-2012, 03:36 PM Thread Starter
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If I wasnt gonna go over 850-900 then I would give fingers cast a shot but I don't wanna be a test rat for them since I'll be going to 1100+ every now and again. I would hate to go 10k miles and have one crack.

My builder is getting some good mileage from mahle forged. Has over 40k on a set.


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Blackout :06 GMC lbz 4x4 Built motor, HSP twins, DDP Injectors, Self built trans 11.68@118.5
Over Built :07 Chevy lbz 4x4 Caged and built 10.42@134
The Car: 2014 Chevy Cruze 2.0 Diesel
Special thanks to: Mike L, Gtrippin, IdahoRob, Dmaxstore, HSP, ISSPRO, Yukon, Airdog

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post #9 of 39 (permalink) Old 12-09-2012, 03:37 PM Thread Starter
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Quote:
Originally Posted by Firefighter08 View Post
Are the Mahle forged really over 2K a piston? Just googled it and that's what I was getting.
Nah about 2600 a set retail


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Blackout :06 GMC lbz 4x4 Built motor, HSP twins, DDP Injectors, Self built trans 11.68@118.5
Over Built :07 Chevy lbz 4x4 Caged and built 10.42@134
The Car: 2014 Chevy Cruze 2.0 Diesel
Special thanks to: Mike L, Gtrippin, IdahoRob, Dmaxstore, HSP, ISSPRO, Yukon, Airdog

LIKE US ON FACEBOOK!
Adrenaline Truck Performance IDAHO ROB 208.685.1000
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post #10 of 39 (permalink) Old 12-09-2012, 03:40 PM
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If you have any doubts go forged. There is not enough test time on Fingers oval forged to prove if they last or not.
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