Duramax Lifetime Supporter
Join Date: Feb 2017
Location: Spanish Springs NV
I agree with Matt, at that power level and assuming nothing is broken internally, I would rebuild the bottom end all stock with the exception of the pistons. The lml pistons are the weak link in the bottom end and are prone to cracking. The Mahles are much stronger, along with a few others.
On the top end , I would have the heads rebuilt and install them with studs and Mahle gaskets. Everything else stock, with the upgrades you have already done, will make for a dependable engine.
I would save the money from the other upgrades discussed and spend it on a turbo.
2016 2500hd Custom Sport, Z71, LTZ
Leveled with Moto 961's and 295/70\18 Ridge Grapplers,Amp steps, Weathertech mats, Extang Encore,S&B dry,
Wehrli intake bridge and AFE IC piping,Edge Insight cts2, AirDog II 165,SDP resonator delete, Mishimoto pcv catch can, MBRP down pipe,Recon led tail lights and third brake light, Morimoto mini D2S 5.0 projectors w/hidís, Morimoto 2stroke 2.0 ledís highs and fogs.
Kryptonite ucaís & tie rod sleeves, CCM diff drop,Fox 2.0 reservoirs, steering stabilizer, CalTracs,
Cognito PISK and heavy duty sway bar links, AirLift bags,
Nitro 4.30ís w/Nitro TracRite posi...