Here's the specs:

Brand: Erson Cams
Product Line: Erson RV Mechanical Flat Tappet Camshafts
Cam Style: Mechanical flat tappet
Basic Operating RPM Range: 1,000-4,000 RPM
Intake Duration at 050 inch Lift: 210
Exhaust Duration at 050 inch Lift: 210
Duration at 050 inch Lift: 210 int./210 exh.
Advertised Intake Duration: 254
Advertised Exhaust Duration: 254
Advertised Duration: 254 int./254 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.435
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.435
Valve Lift with Factory Rocker Arm Ratio: 0.435 int./0.435 exh. lift
Lobe Separation (degrees): 111
Intake Valve Lash (in): 0.022
Exhaust Valve Lash (in): 0.022


Any htought on the suitability of this camshaft as a low RPM torque cam for a slant powered truck? Thanks!

I've got an Erson 268 sitting in a box here beside me that's destined to go in a truck w/in the next month or so. I called and talked to the Erson tech line (see this thread) and he they guy told me that if I wanted to play it safe, I should stick with the 254, but I would /probably/ be happy with the 268 if I wanted to take the risk. My fingers are crossed that I don't have to resort to buying a higher stall TQ. I'd call and talk to Tom anyway... he was fun guy that seemed to know his stuff.

Thanks! I am looking for something that will add more torque and low RPM power for my brother's van. It has a stock cam in a fresh (under 10k miles) rebuilt engine but he wants to load it up and tow a trailer. I think I may go ahead and install this RV cam.

The 111 Lobe Centers will give the cam lots of low RPM power.
The lash on the intake side seems a bit loose, you most likely could tighten-up on that.
DD

Personally, I doubt you would notice a difference between a stock 71-up cam and that Erson cam. Maybe if they're both degreed in just right, but I still doubt it.

Lou

_________________
Home of Slant6-powered fun machines since 1988