LMM: Another build thread, advice?

cafryer

New member
May 5, 2011
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Utah
Wow this is confusing me mors and more. Tryin to decide.which way to go for my build and now im confused. Whats fingers do to make his different? So lb7s cut and coated are not for 750-800hp+? Cause thats what im shootin for. Not tryin to derail veetee. Im in same boat as u.
There are lots of trucks running cut LB7/LLY pistons making big power and some fail but them are the ones that you hear about not the ones that hold up. I personally know of a couple trucks that make a legit 1k hp and they have lasted in those trucks.
 

MaxPowerLB7

Amateur
Nov 8, 2007
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Spanish Fork, UT
Ive run decked, delipped, uncoated lb7 pistons with no valve reliefs at 600-1000 HP for 4 years and 43k miles without any issues. Results may vary butt i've had good luck.
 

coldLBZ

New member
Apr 22, 2007
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Alberta, Canada
I think Simon (sweetdiesel), Trent, and Jeff (stingpuller) have used Arias pistons. I think they will need to be re ringed every so often though.
 

VeeAte

going for 10s
Dec 7, 2010
177
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ocean springs, ms
all great info, i really dont wanna re-ring every 30k. Im leaning hard towards cut and coated mahle cast pistons,carillo rods, arp head main studs, hamilton valve springs and throw it back together. Probably gonna use stock main/rod bearings unless someone thinks its a bad idea
 

gmduramax

Shits broke
Jun 12, 2008
4,073
249
63
Nor cal
all great info, i really dont wanna re-ring every 30k. Im leaning hard towards cut and coated mahle cast pistons,carillo rods, arp head main studs, hamilton valve springs and throw it back together. Probably gonna use stock main/rod bearings unless someone thinks its a bad idea

Your talking about the mahle motorsports pistons right? DO not get the LB7 mahle pistons.
 

VeeAte

going for 10s
Dec 7, 2010
177
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ocean springs, ms
Your talking about the mahle motorsports pistons right? DO not get the LB7 mahle pistons.

Yea mahle motorsports, or i may pick up the pistons JD dave is selling, appears it may be my best option. socal cut and coated cast pistons.<----are those the ones you say not to get gmduramax?
 
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xtremebikr04

New member
Jan 17, 2011
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Vermont
all great info, i really dont wanna re-ring every 30k. Im leaning hard towards cut and coated mahle cast pistons,carillo rods, arp head main studs, hamilton valve springs and throw it back together. Probably gonna use stock main/rod bearings unless someone thinks its a bad idea

Id put in some clevlite bearings (main/rod/thrust), get everything balanced, key crank and cam, put an ati dampner and billet flexplate on. Do it right this time and you shouldnt have to tear it down and do it again.
 

snowman

Evil Diesel Performance
Aug 30, 2010
350
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Manitoba Canada
that's what i figured. it's just funny that they wouldn't use those or something like those from the factory. Heavy diesel has used it for years!!
 

MaxPowerLB7

Amateur
Nov 8, 2007
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Spanish Fork, UT
Heard its suppose to help handle higher egts, and i only know what ive read from others that have done it. Im just gathering info from as many people as possible and try to make the best decision i can.

I'm sure coating does help reject heat, but if the coating happens to chip off will it then trap heat in the piston? Just a hypothetical question, I don't have much experience with coatings.