Just a little curious but about how much boost can a stock 4.8 bottom end handle? Or would a better question be, how much power/torque could I make with a stock bottom end without having to worry about anything going KABOOM?
Just a little curious but about how much boost can a stock 4.8 bottom end handle? Or would a better question be, how much power/torque could I make with a stock bottom end without having to worry about anything going KABOOM?
You can do right at 10lbs on stock internals. That will give you quite a bit of powerOriginally Posted by jetmech
1951 3100
1984 C10
Eh, you can push it to about 15 psi--but you are playing Roulette everytime you hit max boost. 10 psi can be done reliably--maybe even 12 psi...
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
yeah I was just talking about reliability lol. everyday driving
1951 3100
1984 C10
i ran 15 on my 4.8 for awile with my paxton novi 2000.4.8 is a pretty tough motor.
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
My POS walbro looses pressure once it sits for a few minutes. I have to turn the key on and wait for it to pump up for a second. Sometimes it doesn't and I have to cycle it a few times to get it to pump up.
99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
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