P4529340 Mopar Slant Six Cam info

pishta said

a 240 @ .006 is ~ 185 @ .050 according to this, that's some weak sauce! If MP is advertising at .006, that's a joke.

Chrysler High Performance Cam Data

If they are advertising at .050, then we warm it up alot, comparable to a MP 284-ish spec. I ran a 284/.484 MP cam in a 340 and it was a nice cam with a 3.55 or taller rear. I would think that is what this cam profile is if its marketed as a performance cam.

Click to expand...

yea but is says in the text of the attachment...
" Duration @ .050” valve lift shown in the tables is 85% (.850) of nominal for high-performance cams, and 77.7% (.777) of nominal for OEM cams, per Chrysler. Duration @ .050” lift figures should only be used for comparison between MP cams. In some cases, more (potentially) accurate duration @ .050” figures appear as "Notes", with the source or author in parentheses.

So all of the Mopar purple shaft cams listed in the linked document the .050 is a number calculated as a fixed percentage of the quoted duration. That is not an accurate method to quantify the ramp on the lobe.

Thanks for the information, I plan to swap the P4529340 cam into the 83 D150 as a winter project. I will degree the cam then and post back on exactly what it is.