Cheapest way to 400 hp 2002 Gmc
#33
I think I am close to 400hp. but have not dyno'ed. 2002 LM7 5.3
275 HR cam 400
Springs 200
Torqu conv 300 (made at local trans shop from a colorado converter)
Tune 100 (friend has a HP tuner)
flex fuel inject 60 (used)
adapter for injectors 20
cold air e bay 90
headers long 550
total 1720
exhaust cut out 225 (electric flapper), I run bone stock muffler and beyond.
275 HR cam 400
Springs 200
Torqu conv 300 (made at local trans shop from a colorado converter)
Tune 100 (friend has a HP tuner)
flex fuel inject 60 (used)
adapter for injectors 20
cold air e bay 90
headers long 550
total 1720
exhaust cut out 225 (electric flapper), I run bone stock muffler and beyond.
#36
TECH Fanatic
400 hp with 700 is not going to happen, unless you spray it. i would just do bolt-on stuff speed engineering has header for 230 plus shipping, shorty dont do much. under drive pulley, junkyard e-fans, trutrac with 3.73-4.10 gears. or just save little more go ahead and do the 80e swap.
Thread
Thread Starter
Forum
Replies
Last Post
Funkster
GM Parts Classifieds
22
06-03-2016 04:26 PM
07NBSChevy
GM Engine & Exhaust Performance
7
03-16-2016 05:41 PM