021less

iTrader: (28)

I'm about to be doing a head and cam swap on my car. I am probably going to go with something like the ms4, and i have stock ls6 heads also, lts, tb, and a couple other things. Right now my oil pump puts out about 60psi idleing and just over 70 at cruising speed. Will I need a ported pump or should the one i have be ok? Also, what size injectors should i go with and do i need a larger fuel pump, like the walbro 255lph. Also is the inline pump ok or should i get the in tank one if i do need one? Thanks in advance for any replys

black01_WS6

iTrader: (13)

42's will give you room to grow, or you could probab'y get away with some 30#'s.

I just modified my stock pump and I have over 104,xxx and it is still going strong. 30k with cam.

021less

iTrader: (28)

thats what i think i'm gonna do, go with some 42's and modify my pump, just bought the ms4 about 2 min's ago from korn_freak, can't wait to get it and put this unit together!

JF-WS6

iTrader: (1)

42's and your oil pump will be fine.

blkZ28spt

The only reason many people change oil pumps when doing a cam swap (myself included) is that they have a 98-00 model with the old 'LS1' style pump that is not known for it's reliability.

021less

iTrader: (28)

ok i got ya, i have been wondering about that. I figured mine woule be fine cause the hellacious pressure it holds now, but i just wanted to make sure. Thanks fellas