ok i got about three or four things to choose from and i can't seem to get set on one so i need opions here please.
first one get a stroker kit for the ls1 and make it a 383.
second bore the 4.8 out to 5.7 bore and make it a 383.
third buy a 6.0 block and make it a 402 or bigger.

ok here is where it get complicated to do the ls1 i have to take it out of my truck which i drive everyday to be able to build it and someone said something about clearance issues on the ls1 block. the 4.8 if it will got to 5.7 bore will be good if boreing it out doesn't cost much becouse its already out in the garage. the 6.0 sounds even better but if i have to spend money on the block then that takes away from the turbo fund which i have everything for but piping thats all i really like and an oil pump maybe depends on where i put the turbo. so if i go 6.0 i may not be able to get my turbo in till like this time next year. and i've had since this time last year. and if i go the the 6.0 will i need new heads becouse i', running ls1 heads right now. will they be ok until i get bigger heads? and if i do have enough left to finish the turbo will the 402 with ls1 heads be ok for the turbo
so let me know what you all think i got to get it striaght there are so many options.

 

I'd go w/ the 4.8 block and bore it out to 5.7. I too have been considering this route, but now I think I'll just go w/ a LQ9 crate motor.

 

I would want the 6.0L bored.

 

diamond has some new pistons out that look nice and they make it for each bore i'm looking at. http://www.diamondracing.net/Diamond2006.pdf scroll down to the ibf race blower/turbo dish pistons look nice. but will the 4.8 got to 3.905"

 

Richard @ WCCH told me you can safely take the 4.8/5.3 block to 3.900".

 

Quote:
Originally Posted by BlownChevy
Pretty sure you can only go as deep as the LS1 bore on the 5.3.




BlownChevy's correct. Several years ago we bored a 5.3l block to 3.90". We sonic tested the block first. There was enough to make the 3.90" bore, but not enough to make the 4.0" bore. That engine ran really well in a 4X Tahoe w/a lift kit.

Good luck,

Richard

 

but the diamond pistons say 3.905 will this still be ok? if so i may just do that but man it would be nice to go over 400

 

Richard also recommended "sonic testing" the block to see how far you can bore it. IDK from there, I was going to go this route but after figuring time and $, for me it'll be cheaper and quicker just to buy a new crate motor and add some bolt-ons.

 

yeah i was reading you thread. its interesting but after the sonic test and bore i could have a new bare 6.0 block. i'll have to check prices around here and see what i can find for machine shop pricing

 

any body else. i still can't get this figured out couse i want my turbo on but i want a bigger motor but it seems i can't get both soo i don't know what to do. somebody talk me into something.