L76 vs L92. is the 12cu in worth it?
12-09-2014, 04:33 PM
#1
TECH Enthusiast
Thread Starter
iTrader: (15)
Join Date: Nov 2006
Location: Jax, FLA
Posts: 706
Likes: 0
Received 0 Likes
on
0 Posts
L76 vs L92. is the 12cu in worth it? Ok, I I recently acquired a L76 short block. Stupid cheap. Needs a rod bearing. Originally, guy though it was a L92. Oh well, still stole it.
So, my question is. How much would I leave on the table, potential wise? This will most likely be going in a 5100lb Yukon. Cam and stall are a must. I'd like to see 12s.
Cathedral or Rectangle heads? I see boost in the future as well.
Should I get this short block refreshed and sell for a 6.2 or am I not missing much.
So, my question is. How much would I leave on the table, potential wise? This will most likely be going in a 5100lb Yukon. Cam and stall are a must. I'd like to see 12s.
Cathedral or Rectangle heads? I see boost in the future as well.
Should I get this short block refreshed and sell for a 6.2 or am I not missing much.
12-24-2014, 08:19 AM
#2
My 6.0 with L92 heads and G5X3 cam made 446/405
My 6.2 with same heads and blower cam makes 476/436
I attribute most of the gains from the larger bores unshrouding the valves a little and more cubes. Typically a blower cam is softer in the midrange. My blower cam did much better everywhere over the X3, which is an awesome cam. My tuner thinks if we specd out a nice sized NA cam to throw in the car, we could get 500hp out of it. However my car is setup to go procharged, so that wont happen. But as you can see, the bigger cubes helped quite a bit, even with a non-ideal cam for NA power.
My 6.2 with same heads and blower cam makes 476/436
I attribute most of the gains from the larger bores unshrouding the valves a little and more cubes. Typically a blower cam is softer in the midrange. My blower cam did much better everywhere over the X3, which is an awesome cam. My tuner thinks if we specd out a nice sized NA cam to throw in the car, we could get 500hp out of it. However my car is setup to go procharged, so that wont happen. But as you can see, the bigger cubes helped quite a bit, even with a non-ideal cam for NA power.