4.8 mods
#1
4.8 mods
A local guy is having a "professional lsx engine builder" gather him up some mods for his 4.8 with 3.42 gears. He wants me to do the tuning once its all done so I told him to get me all the specs on cam and everything before hand so I would know what to expect.
Here is what the guy wants to order for him.
Thumpr 291THR9 235/249 .573 .558 109
LS6 Springs
Hardened Push rods
TB converter
I told him the cam is way too big with a stall too small and he will be peaking the springs out on lift. He told the guy he needs to pull a trailer from time to time and this is what he came up with.
Here is what the guy wants to order for him.
Thumpr 291THR9 235/249 .573 .558 109
LS6 Springs
Hardened Push rods
TB converter
I told him the cam is way too big with a stall too small and he will be peaking the springs out on lift. He told the guy he needs to pull a trailer from time to time and this is what he came up with.