im putting together a truck motor for my 01 suburban z71. the motor in it now is original and has 469.000 and change on it. so i bought another one from the yard with 189.000 and some change. it came out of an 02 tahoe. i took the motor apart today and the rod and main bearings are perfect,the rings and the pistons are in good shape,ill be putting new cam bearings in it though . theres a shocker.i have new rings ,new rod and main bearings, complete gasket set, and for torque and pulling my boat i bought the brian tully truck norris cam complete set with the correct push rods and ls7 lifters. this is not a race motor this is a bit of an upgrade over stock. i will be putting a 2600 to 2800 stall converter in the trans which is in great shape but im having a problem finding a reasonably priced set of headers 1-7/8 if i can and will i need to do a remote tune witha spec card or just take it to the dyno. again this is not a race motor. thanks yall for your imput

 

Are you a bot?

 

nope not a bot

 

Okay, because your lack of capitalization and punctuation made your post look like it was generated by a bot account... We've been getting a lot of that around here lately.

Anyway, I'd use the parts that you have; the higher stall converter won't be as good for towing. Does the transmission have 469,XXX miles on it?

 

I’d stay 2500 stall for towing. You might could get by with a 2600 to 2800 but you definitely want to invest in a remote trans cooler setup with fans. More stall adds heat to fluid from slippage. Everything else on your list seems good. Try Texas Speed for the headers. I’ve put a couple sets of their stainless headers on trucks and they fit good.

 

While you have this motor out, go ahead and replace the engine sensors - knock sensors plus their wiring harness, cam and crank position sensors. They are all easy to reach now and won't be later. I went ahead and also replaced the water pump and cleaned the fuel injectors rather than let the ethanol-laced fuel damage them while sitting unused. Use genuine AC Delco parts where possible.

A very ambitious person would also take a look at the timing chain and its apparatus at this point.

Rick