92 Toyota truck ls1 build many questions

Building a 92 Toyota truck with a 5.3 from a silverado. I want it to be streetable but also very track worthy. So here we go I want to either go 383 or maybe stoked bigger not a set thing yet. Prob use the double comp valve springs I have good to .650 lift, possible ls7 lifters if I can not sure if that application will work. Will prob go with Texas speed heads. 42 Ib injectors and I'm thinking scorpion rockers. Need to know Wht y'all think about these ideas. the motor will be naturally aspirated no boost or nitrous. Any input on parts is appreciated need ideas on the whole assembly. Looking to have upwards of at least 500 hp.

Well you wont be doing a 408 with a 5.3 block, so if you're going stroker, it'll be a 383. Your questions at this point should be pointed more towards getting the motor in the truck in working order before you worry about the performance of it.

We are going to build the motor first then put it in the truck be easier that way that's why I need part ideas

Need input also input for Wht tranny and rear end along with gear ratio would be the best for 1/4 mile

Stock rockers are fine. A lot of us have made well over your goals without changing rockers.

What is the biggest stroke I can go with the iron 5.3

A cam with 230 duration and .600 is very streetable in these motors. You can't go wrong with 4.10 gears. 4l80e will be your best bet for a trans, or a built FLT 4l60e. 3200-3600 stall is most popular.

Got more info on the truck? lifted? 4x4? weight? tire size? will you be towing?

I have done a cam swap before in thi motor but never gone to a whole different bottem end assembly. Will prob go 383 and the truck won't be used for towing its 2 wd 17 inch rims will prob change tire size sometime will be used mostly for the track

How about the ignition system, do you have to replace the toyota distributor & accessories and transplant the ones from the silverado as well?