I have a 454 tbi 4l80e, suburban.
Looking to take a perfectly running engine and destroy it. I know that there is a small hiccup for gen 5 motors with the coolant passages. I have read that using a specific gasket remedies this but also have read you are simply limited to 300-400 hp because of this. Now Im sure that hasn't stopped others from making more.
I am basically looking around for a decent setup to net me around 650-700 flywheel so I can get around 500rwhp. I am planning on running a 395 tire thus the desire for around 500wheel hp. However I don't want to build an engine and then have to switch to carb because no one can actually tune it.
So if a tuner has a solid tune for a engine in that 650-700 ball park and has a build list that'd be awesome. I realize a lot will get changed out but that doesn't scare me, what scares me is hours and hours of work being wasted when I am forced to run a carb. Carbs are great but here in florida I have had endless issues trying to drive carb cars in 2+ hour traffic in 100+ heat. Also everything works perfect in this truck and its absolutely mint soooooo its a super candidate to build me dream walmart crawler.
Have seen endless threads on heads only common denominator is to get rid of the peanut ports. I was looking at a 502/540/572 stroker kit in, some decent cam and intake. I mostly plan to take the truck camping, to the beach, and some mudhole fuckery, I wont crawl with it, and I honestly probably wont tow shit with it.
