ryan_prettyman

iTrader: (2)

Hey was wondering about how much power a 454 LSX would produce and I guess more importantly what kinda gas mileage would I get in my RCSB truck, my 5.3 gets over 20 on the highway if any one has naturally aspirated big cubes let me know the power and the mpg!

ryan_prettyman

iTrader: (2)

I wonder how cheap you could build one of these big cubes?

00Silv4.8

iTrader: (10)

look up the bore(piston size), crank, connecting rods and probably heads. Thats about how much it'll be, roughly. Then think about trans cuz ur gonna need it

7845

iTrader: (1)

powerwise. i wouldnt build a 454 unless i was going to see 600rwhp

00Silv4.8

iTrader: (10)

u could however find a place to pull an old 454 out of. Theres a place here that has a couple laying around. They're only supposed to be making about 240 TOPS--according to the specs of that yr (about 99). That might be an option?

ryan_prettyman

iTrader: (2)

world products warhawk block or LSX?

ryan_prettyman

iTrader: (2)

Lsx 454 Not Vortec 454!

dirt track racer 81

iTrader: (45)

ZZebes

iTrader: (10)

Single Digit gas mileage and close to 600hp i would guess with a big cam and massive set of heads

ryan_prettyman

iTrader: (2)

SLP sells the 402 with intake manifold and injectors but not the covers for about $7300 I wonder what kind of power that puts out and if that would be the way to go I still would still like to retain good gas mileage!