Purple cam with .307/.323 lobe lift

[69sunfireGTX]

I am working on a friend on mines Cuda with a 383. He picked up the car a couple years ago but really never ran it. It's a fresh engine rebuild with a purple cam and hydraulic lifters. It has one lifter that never pumps up and another that fades in and out. While I had the intake off I measured the lift on the cam lobes to try and figure out what cam was in it. They measured.307 in/.323 ex. I can't find these specs for any of the purple cams. Does anyone know what cam this might be?

 

[vance.dykes]

you need to check at the rocker to get the total lift due to the rocker ratio. if you had a cam shaft card it would tell you the actual cam lobe height. not the advertise lift.

 

[Don Frelier]

To get valve lift you multiply by 1.5
Doing so I get .4605 intake and .4845 exhaust.
I believe the roadrunner cam was .450 / .458 while most other Mopar Performance cams had the same lift on both.
Maybe a .484 cam with a worn intake lobe?

 

[vance.dykes]

To get valve lift you multiply by 1.5
Doing so I get .4605 intake and .4845 exhaust.
I believe the roadrunner cam was .450 / .458 while most other Mopar Performance cams had the same lift on both.
Maybe a .484 cam with a worn intake lobe?

i would take a dial indicator and do a check on the engine as the hyd lifter will play a part due to oil bleed from spring pressure. check out a you tube vid to get an idea.

 

[69sunfireGTX]

To get valve lift you multiply by 1.5
Doing so I get .4605 intake and .4845 exhaust.
I believe the roadrunner cam was .450 / .458 while most other Mopar Performance cams had the same lift on both.
Maybe a .484 cam with a worn intake lobe?

I checked two other cylinder lobes and they measure the same as the first. This is a brand new camshaft and lifters. I did find another manufacturer that had those specs but it was not a purple shafted camshaft.

 

[wyrmrider]

IDK about a 460/484 lift MP dual pattern cam
Intake would be close to Engle
K-52HYD .458" .305" 254°@.008 209°@.050
ask Racer Brown