stretch104

what mods would be needed to get a 5.3 to 350-400whp all motor.

brandont454

cam, tuning, headwork, headers, and cai should get you there

one03sierra

iTrader: (1)

rear wheel hp out of a 5.3? that will take a lot of mods including extensive head work-cam-a lot of tuning-the right exhaust. this will have to be a set up that comes together. each piece will have to compliment the other. good luck though as i want to know myself. i think i would be a little closer to that if not for the 80e i have.

superchargedchevy02

I got 342 RWP with only my Kenne Bell and exhaust.

TnTrk53

Two stage No2 is probably the quickest way but your tranny isn't going to like it much.

Grey Silver

iTrader: (1)

Yeah, what he said.

02sierraz71_5.3

iTrader: (2)

those are my current goals, ive got milled heads with larger valves and unshrouding going in soon as far as cam its daily so Im going with something like tr's 224/224, the only big thing aside from bolt ons after this is a 100 shot and that should push me over the 400 rw mark,

ive currently got intake, catback, 3k stall, shift kit and dyno tune.
it put down 244/300(stock engine) Ive got alot of ground to make up and I seriously doubt that lt's and the above engine work will make up the 100 rwhp Im lacking odds are against my setup making it na but well see

im tired of messing with this little motor thats why nitrous is looking better and better

02sierraz71_5.3

iTrader: (2)

the best way would be big *** turbo and no2, with those thing I would expect 500 rw

parish8 is the guy to talk to if you really want to go big numbers and FI

I remember one of his posts he got close to 500rw out of a turbo 4.8

one03sierra

iTrader: (1)

yay man it is going to take a lot all motor. nitrous works. but a turbo will be the best mod i think.

stretch104

how much nitrous can a 5.3 take in stock form. whats safe?