Do you guys know a way to tell the difference? I bought a set of HS rockers from a good member here that have never been run and they were thought to be 1.7 Non-adjustables. When I installed them in place of my stockers (same pushrod length) it ran like crap and loped really hard like it was going to stall.

Before I assume it's a pushrod length issue ( ran fine before with the stock 1.7's so the length must be close ) I am considering they could be 1.8's and hanging the valves open. I'm lucky I didn't get PTV issues actually. I have already emailed HS but I just thought a few of you guys could lend a hand.

Thanks

Here are a few pics to help id if at all possible

 

So nobody knows

 

Bump anybody? I am still waiting to hear back from Harland Sharp. Why in the hell would the stock rockers work fine on stock pushrods but these would not (if they are infact 1.7's). Hmmmm

 

The roller tips don't seem centered correcly over the valve stems. Are you sure thay are the right part?

 

I know they are the LSX rockers and they are non-adjustable. Actually, they were centered great so maybe the pic makes them look funny. I am going to try shimming them today.

 

99% of the time companies will stamp or mark the rocker if it is any ratio other than what comes as stock...

if pushrod length is your concern, check the preload on the lifter...

i wouldnt use shims to compensate for too long of a pushrod...shims are better used for aligning the rocker to te valve..