1983 D150 / Slant Six the story Continues
what cam did you put back in it? how you like it??
the cam that I put in back in 2011 was Oregon grind 1331 on the intake and Oregon 1527 intake on the exhaust. This is a hydraulic cam.
Advertised duration 256 / 250
lift at the valve .477 I / .432 E
I was looking for low RPM HP and TQ and it was fine for that, you could feel the cam come on at 2600 RPM and it pulled strong up through 4500 RPM.
Found a NOS slant six hydraulic Mopar Purple shaft cam at the Indy Cylinder head swap meet a few years ago.
P4529340, the box was dated 1988
Advertised Duration 240 / 240
lift at the valve .396 / .396
ground on a 106 centerline, I installed it at 102 ICL.
Since I had the motor out for a clutch change and the Dyno Sim predicted a bit more TQ below 3000 RPM I put it in.
The engine is set at 8.5 static compression, comparing Dynamic compression using the UEM calculator the dynamic compression with the
prior cam, was 7.537 With the new cam the dynamic compression went to 7.979
The little I have driven the D150 it does roll out a bit easier off idle. But I also have a new clutch in the truck and had just re built the cylinder head. I will find more out about the cam as time goes on. Going smaller matches how I now use the truck as a driver - cruser.