hsvgtsr

i fear on or more of my rockers may be on there way out


what would be best to replace them with? 1.7 / 1.8 make?


i'am runing : ls1 c4b/eps 236/242 111lsa /kinsler itb intake manifold/ hsv headers/ 2.5inch cat back without cats


any advise would be grate

salemetro

iTrader: (5)

What lift and open spring pressure?

racer7088

Probably OEM rockers would be fine as Geoffs EPS lobes are smooth and not over .600 lift usually.

hsvgtsr

i'am only running a tad over 600 lift


is there any advange in runing 1.8 rockers?

Bramlok

iTrader: (7)

I would just use the stock rockers and do the comp cams trunion upgrade.

hsvgtsr

thanks guys i've got a chance of some harlen sharps 1.8 rockers cheap

but if the standard rockers are good i'll put the set or oem one's i've got in

PREDATOR-Z

Do not use 1.8 rockers. Your lobes are too sharp to have valve stability with those.
1.7 is the way to go.

hsvgtsr

thanks mate will do i've got a set of standard oem rockers so i'll do the bearing upgrade


thanks again people

fastazzls1

also increasing the rocker arm ratio increases lift at the valve thus decreasing ptvc!