Quick 5.3L Head Question...
#4
SN95 Director
iTrader: (16)
Originally Posted by Brian Tooley
And the 4.8/5.3 head has a 3.8" chamber diameter and has to be opened up to 3.9" and have the valve changed before it makes as much power as the 5.7
#5
FormerVendor
iTrader: (13)
Originally Posted by jrp
the stock seats will hold a 2.00 or 2.02 valve though right? only if you want 2.05 do the seats need to be changed?
I don't think the 1.89 valve in a 5.3 will make as much power as the 2.00 in a stock 5.7 head, no way.
You have to do the chamber and put a 2.00 or 2.02 valve in a 5.3 head in order to make more power then a 5.7.
BTW, I never checked that thread, you wanna flow a head? PM me or call me 330 784-5210