UDNTCME

just like the title says. Is tuning necessary? What kind of power gain would I see with stock cam and heads? Thanks in advance.

Last C5

A tune is probably not going to be needed and you should see about 13 to 17 rwhp. This is assuming good push rods and the right springs.

THEBRAD

iTrader: (3)

does anyone have actual dyno results from upgrading to roller rockers or a larger ratio?

jkwalkercchs

iTrader: (21)

yea gm high tech performance just put an exhaust and a set of 1.85 slp non rollers and picked up a good bit theres a dyno graph in the mag

THEBRAD

iTrader: (3)

yeah but thats with exhaust also did they do just the rockers?

jkwalkercchs

iTrader: (21)

no i think they done both at the same time got around 40rwhp
so they must be an improvement considering cat backs dont release 40 hp

THEBRAD

iTrader: (3)

or do they? lol

jkwalkercchs

iTrader: (21)

maybe for the import kids lmfao

THEBRAD

iTrader: (3)

im on a another site for people from licking county and some kid on there tried to say a header into a pipe straight out by the tire added power. i said yeah 2 hp at 7000 but u lost 25lbs everywhere else. he said he didnt need down low i said lets race lol

teke184

iTrader: (5)

track down mrr23 i think his screen name is...he did the swap and dynoed it. i want to say 18rwhp...but don't quote me.

THEBRAD

iTrader: (3)

awesome thanks

lstvr

Here is what JUST 1.85 rockers did to my 383 stroker, the lower curve is an LS2 for comparison, see how the top end on mine drops like a stone pre rockers!

jkwalkercchs

iTrader: (21)

dam thats a real big diff

THEBRAD

iTrader: (3)

yeah i never would have figured that at all