Originally Posted by lewtot184
Originally Posted by Uberpube
The first 440 build I ever did 23 years ago, I walked into a local machine shop with a disassembled long block and a magazine article for a hi po 440 build, probably similar to the ones being talked about here. upper 9's to 1, big valves, some porting, MP cam etc.
The machine shop took a pen and x'd out everything they said would be a disaster in a 4x4 truck, I spent quite a bit of cash, took their advice, and basically ended up with a stock 8:1 motor .030 bigger than I took apart. Should of gone elsewhere, that shop is long out of business now.
i got back into the mopar stuff in 1985 after a 10yr lull. went thru about the same thing in 1985. not sure anything has gotten better.


That skill of selecting a combination comes from racing/dyno work.

So the question should be when you walk in to a machine shop and ask them for advice on selecting a package - how much successful racing have they done and do they have a dyno. No racing experience or dyno, leave unless you know what you want done and don’t allow them to give you anything you didn’t ask for.

Last edited by Transman; 12/31/20 01:50 PM.