well i'm glad i tore her down
 

after countless bottles

a couple 300 hits

25+ bottles on a 200+hit most on pumpgas

and 150+ bottles through this motor

i decided to go to a FI route.. we pulled off the old patriot 5.3's and i was just beginning to push the headgasket out between the front 2 cyls on the drivers side.. i'm glad i pulled it apart now.. i think the heads were starting to left being that they were OEM headbolts..


i tell you what the motor is CLEAN as hell inside.. minimal carbon build up

however my exhaust valves are white.. the plugs look great the wideband never showed lean.. but the ex valves are white..

but all in all i'm extremely impressed.. 698rwhp
OEM headbolts
OEM injectors
OEM headgaskets
stock bottomend

and she lives..

guess will see how much boost the already pushed stock bottom end will hold now..

Mike
:usa:

Nice testimony to how N2o will destroy a motor... NOT.

Is the white on the valves from running lean.. or additives? I would think that if it were lean enough to make them visibly white, they wouldn't seal anymore. Additives will build up and look like that though.

nice to know !

i'm kind of wondering if its from leaded fuels

A guy I know has built a few race fuel-only big blocks and when he pulled them back apart the exhaust ports and valves had kind of a white coating on them.

looks like i convinced u just in time,lol.screw a forged SB lets find out how much boost she'll take and leave on the transbrake with :devil: how get that turbo in and those heads and lets get to work.

Mine were all white also and i never went lean. I think that is totally normal on a n20 engine. Go ls1.