402 lq4/9 v.s. 383 lm4/7
12-29-2011 | 02:34 PM
#1
Thread Starter
TECH Enthusiast
Joined: Sep 2010
Posts: 580
Likes: 0
From: North Central Ohio
402 lq4/9 v.s. 383 lm4/7 I know in short there is no replacement for huge displacement.
How ever the "Real World" intrudes and economics takes presidence.
Using N2O type Hyd roller cams, a max of 10.7:1 CR, ported LS6 heads,and a LS2 intake would it possible with 91-93 octane pump gas to make 483 FWHP with a 383 cid LM4/LM7 or 571 FWHP with a 402-403 cid LQ4/LQ9?
After N/A power is dialed in then try some Spray.
How ever the "Real World" intrudes and economics takes presidence.
Using N2O type Hyd roller cams, a max of 10.7:1 CR, ported LS6 heads,and a LS2 intake would it possible with 91-93 octane pump gas to make 483 FWHP with a 383 cid LM4/LM7 or 571 FWHP with a 402-403 cid LQ4/LQ9?
After N/A power is dialed in then try some Spray.
12-29-2011 | 09:29 PM
#2
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
Why are you looking for 88 more hp with only 19 extra cubes?? And, what is the significance of 48"3" and 57"1"...most people would have asked about 480 and 570?? You could easily make over 483 chp with a heads & (NA) cam 383. But, I am not certain how much the hp numbers are affected with N2O cams vs. NA.
