MAX RWHP on L83 with stock internals??

[Soush]

Ive got a 2014 sierra single cab, running the L83 with stock internals and just a DOD Delete + a stage 2 gwatney cam. Whipple 2.9, L86 throttle body, 100% methanol injection... The car runs like a dream and has hit 595whp on the dyno. I'm looking to do an upgrade on the fueling, adding a 102mm TB and lowering the pulley to a 3.5" as I'm currently running a 4".

Issue at hand is there are alot of people claiming different numbers and I do not have any definite number as to what the max HP is that the L83 with stock internals can take. I've heard from 500whp to 750whp. Just wanted to know your input to see if anyone has any idea.

Much appreciated!!

[CajunFries]

It allllllll depends on your tuner and the ring gap. These engines come with very tight ring gaps from the factory. If you have a good tuner, running E and meth, 650 shouldn’t be a problem. That’s where I was at roughly with my blower setup. Idk what your power goal is, but I would up your fuel system (low side and high side) so you can run E85 and max out your meth pump. Having a lot of meth and E will help keep your out of trouble from knock and high IAT. Also if you don’t have trans cooler already, make sure you get one setup before the trans leave the chat room.