Recent content by 340commando

My 340 is 73-340 flat top pistons ,Comp Hydraulic flat tappet,292 duration and 508 lift on intake and exhaust lobes. I had x heads being replaced with the reg port Commandos. It has stock stamped type rockers., Thanks

Yep,thats clear to me now . I put it in the machine shop local to here knowing the swap needs finessed by a machinest and it looks like they bolted it up and wound it on up ,see what works.Crap. I know i blew it. Now im looking for similar problems and solutions from builders,thanks.

I made notes on paper when i dropped off the heads and my truck and requested they check the piston to valve clearance and the valve to valve center clearance because Ryan from Shady Dell was gracious to call me to answer a question. I havent got the call to pick up my truck yet so i dont have...

Hello Mopar folks. I have my 340 in the machine shop having x heads swapped out for Aluminum reg port MP Commando heads p4876785. They called and said the engine ran bad and bent push rods and determined the pushrod holes need opened up. After that they called and said "you have a lifter...