damianldaigle

It actually is a MP112, I've got a bad habbit of generalizng things.

I planned on upgrading the drivetrain, i just hadn't mentioned it in this thread.I am going to open a new topic. The 6L80E are actually pretty stout, supposedly handling 450hp stock. (6L90E 550hp) My plans were to get a larger cooler, 2500 stall, and proper tune. The 6L80E has its own ECU that you can program line pressure, shift points, firmness etc so the only other upgrade would be the clutches if they wear prematurely which I doubt.

The heads have to be removed in order to do the DOD. I realize most shops can port & polish but I would prefer one that has R&D in there CNC profiles. I was wondering if others had used MAST, Advanced Air Research etc and had feedback on them. As far as the trans and all I was gong to start another thread to keep this one for getting off topic, I do have plans on the larger cooler, stall etc. Why would you recommend no more than 6lbs? My buddy is running 9-10lbs on his SS with 243 heads on a 6.0. Thanks! Yes, I'll have to do the DOD delete.

The run down: 2009 GMC Sierra 1500 4x4 CrewCab 5.3 My current mods are American Racing headers w/ y-pipe and no cats, Dynomax catback and Volant Power Core CAI. Sitting on the shelf I have a Whipple SuperCharger and Lingenfelter GT2-3 cam. When I get it tuned they'll port my throttle body. The questions: I'm ready to begin the upgrade and will have my heads ported since they have to be removed to install the cam. I was leaning toward Lingenfelter for this also, are there any other highly reputable porters that without a doubt give me better results? Are there any other engine related odd and ends I should consider while its apart, I'll address drive train later. What is the smallest size pulley I can safely run and approximate boost? Thanks ini advance