I have a 5.3l block that came out of a 2003 tahoe. it has been torn down and sent to gates county machine shop in NC. they bored it to 3.893 (.010 over a stock ls1 5.7l bore) hottanked the block and polished the crank. I have just about everything that goes with the motor minus the intake and some coil packs. I also have a set of forged steel rods with arp bolts to go with it. I do not remember the brand of rods as was in the process of doing everything last year then i put it on the back burner. i have all the bolts and covers however i threw the head bolts away as they can no longer be used. I now live in charleston south carolina. I have 500 invested in the block and crank and i cannot remember what i paid for the rods. If anyone is interested please let me know and i will take some pictures with my phone and send them to you. i would like to get 600 for the block, crank, heads, everything that goes to the motor, and the rods. but times are tough and i will work with you. make me an offer!!!!! i am not on here a ton so feel free to text me. 252 679 5025

 

4.893, that might be a record

 

you must mean 3.900

 

my bad guys.. i meant 3.893 ha ha sorry i fixed it

 

No problem man, not tryin to break your *****, just tryin to help you get the right info out.

Are you sure on the bore? Stock LS1 is 3.898 and a common clean up hone is 3.905.

 

I would have to mic the bores to be exact but the books i have for the last couple of engines i put together suggest that the safest bore is .010 bigger than the stock ls1.. so that is what i told him. I have had this block oiled and sitting in plastic for about a year and a half and i don't want to get rid of it but i figured id throw it out there in case someone was in need of a block that was already to go. ill have to mic the sleeves and update it.