hi guys

well my bro wants hmmm ill say 100 hp for him is enough

he still dont wanna change or upgrade the auto gear clutch

so what do u think 100 hp will he'll be fine with stock clutchs!!

ok my most important q. is i want to get for him an et cylinder head since i am satisfied with the power that i got from et heads on my c6 and my ls1 .

so will et cylinder head 215 will fit the 5.3 engine ( stock bore )

and what cam would he go for?? he want a very smooth cam .

 

what truck and motor? sounds like he has the 4.8 with a 5 speed.

the stock bore is 3.77 on the motors.

whats the specs on the 215 heads for valve size?

 

If he does in fact have a 5.3L, you're better off with a set of stock ported heads or Edelbrock heads worked over for a 5.3L if you're going to stay with the stock pistons.

 

for 100hp in a 5.3, you'll need a stock longblock, all bolt-ons, and a cam + tuning.

 

This might help http://www.ls1truck.com/forums/front...in-budget.html

 

just noticed he has a 07 NNBS right if so he has the 243 heads that flow great. look at that post from oldbull

 

Yeah, the stock heads are a great piece to play with. Try headers and a cam first before you go yanking those off.

 

how about ls6 stage2.5 ??

with a tr224 cam ??? and will i need a torque converter ??

 

yes..