Cam duration question

Dartvader440gt said
What are the issues? I'm unaware of this? And if so, what the mechanical equivalent?

The lifters leak down after sitting just for a day or two. The engine will have bad tick from this on start up. It does go away after a while of running but but usually do it every time you start it. Ran in to this on several builds. Tried changing lifters but the new replacements do the same . This is on several different engines not specific to mopar. Yes we tried the preload from zero lash to 1/2 the plunger travel.

Also the mopar hyd. 474 and 484 cams don't have a wide torque range. They sound awesome but that is it. Same as a "mother thumper " from Comp. Built for sound. Most of the Mopar performance cams you'll need at least a 3500-4500 torque converter or you won't even be able to spin one studded snow on ice.

I cannot give you a specific cam to use . Your engine builder should choose that after compression ratio is determined and head choice. The best cam I ever used on the street with the most torque for a street car was a 465 lift 302 duration. It was an oval track cam. The engine had 10.5 compression a stock 70 340, 915 J 202 heads. LD 340 intake 750 4 corner holley style carb. A bone stock 340 with bigger cam and an Edelbrock intake. Stock 3200 converter and 355's.