New 07 vortec max questions
#1
New 07 vortec max questions
Hey guys, I am going to be buying a 07 nnbs vortec max as soon as my duramax sells. It has the l76 6.0 in it with 159k miles. From my research the dod/afm lifters are junk and are probably close to going out. So I figured I should delete that and do some mods to get some lost power from my duramax 600whp dmax lol.
Heres what I have planned so far. I have a few questions on some things and figured this would be the place to go.
-black bear tune 91 octane
-Texas speed long tubes and y pipe (is non catted very raspy and loud?)
-Texas speed stage 3 vvt cam
What heads does the l76 have? I figured if I have to take the heads off maybe it's worth swapping for 243? or if the heads are good, can I mill them down to bump compression up? The truck l76 has pretty low compression and I plan on running 91 anyways.
When looking at cams Texas offers a low lift and a high lift version. What's the difference between them?
Heres what I have planned so far. I have a few questions on some things and figured this would be the place to go.
-black bear tune 91 octane
-Texas speed long tubes and y pipe (is non catted very raspy and loud?)
-Texas speed stage 3 vvt cam
What heads does the l76 have? I figured if I have to take the heads off maybe it's worth swapping for 243? or if the heads are good, can I mill them down to bump compression up? The truck l76 has pretty low compression and I plan on running 91 anyways.
When looking at cams Texas offers a low lift and a high lift version. What's the difference between them?
#2
TECH Veteran
iTrader: (5)
Has LS3 heads, I'd keep em.
Difference between high lift and low is the lift, obviously, .05" in this case. I think the hp is like 17 different?
I find that a non catted Y can be very raspy, especially on cold starts. Care must be taken when selecting the muffler(s)
I have lifters if you need a set
Difference between high lift and low is the lift, obviously, .05" in this case. I think the hp is like 17 different?
I find that a non catted Y can be very raspy, especially on cold starts. Care must be taken when selecting the muffler(s)
I have lifters if you need a set