Topdawgg

Well, I decided to upgrade my GSR cams for Skunk2 pro1's in my 500whp B-series. Put them in last night, tightened everything down and tried to roll over the cams with the cam bolt and they wouldnt budge.
The GSR cams roll over fine, no issues, so its nothing mechanical on the head side of things.

Anyone have similar issues with these cams being too large for the journals? Im thinking I might to line bore my head.

Im going to take it to a machine shop to have it checked, I checked with my Vernier Caliper, but its probably not the most accurate measurement.

I put in a trouble ticket on Skunk2's website, but I figured I would ask here because It usually resolves any issues I have.

b00stedbyFastrax

have that same issue when I try to adjust my cam gears, but everything works fine.

hybrid_KJ

What valve springs and retainers are you using? You could try using plastiguage to get an idea on the clearances before you go pulling the head. You could also try removing the rocker arms and installing the cams and see if they bind. If they spin freely then the journals are not your problem.

Mikey3000

i don't think you have a problem. if one of the lobes is ramping up it would be difficult to turn with the cam sprocket bolt. put the belt on and turn the crank pulley and see what happens.

Topdawgg

do aftermarket cams usually get hard to turn when you first put them in?

I have complete supertech valvetrain

SilverEk3dr

As long as you put some oil or assembly lube on them then everything should be fine.

mar778c

iTrader: (1)

You do not need to have the head worked on. Pro1s will not turn with just the cam bolt on the high lift supertech springs.

Just as was posted previously, you should be able to turn the engine over via the crank.

Topdawgg

alright guys, thanks for the advice..

ill throw the belt on tonight and roll it over with the crank.

civicjdmb16a

i have a b16a head with supertech valvetrain and the pro 1's. they wouldnt budge. once the belt was on they moved. make sure you degree them or they run like poop

Topdawgg

got them in and rotating, took a socket on each cam bolt and one on the crank pulley bolt to get it to move, once it did, It could be rolled over by just the crank pulley..

All is good

thanks for the help guys