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Just finished reassembly of fresh shortblock, heads were inspected by machinist, no issues. 440 +.030, 9.3/1 compression ratio, 452 stock heads, Mopar HP exhaust manifolds, 2 1/4" pipes, 484/284 purple shaft, Holley 750 Vac secondary, Mopar dual plane aluminum intake, 727, Dana 60 3:54/1...

Have asked everywhere and never got a definite answer as to why my 440 would smoke, only at idle when hot. It ran great, had 165+ lbs. compression. Had a few folks say they thought it was valve seals, others a leaky valley pan. I put a new pan in it and resealed the intake a year ago. End of...

Recently discovered that A&A Transmission sells a MW type cross ram for a 440 and also has MW style exhaust manifolds available. Thinking about trying to create a "tribute" Max Wedge motor out of my Magnum clone motor. It has 452 heads, purple shaft 284/484 cam, approx 9.3/1 compression. It has...

Ok, I have a smoking problem. 440 does NOT smoke when cold, period. Does not smoke on startup. At all. Has 165-175 lbs. compression on all 8. Smokes at IDLE ONLY, when HOT only. If I hammer it it DOES NOT VISIBLY SMOKE. Hot or cold, riding down the street, no visible smoke. Highway, no...

I have a very nice running 440 in my Polara. It was "built to Magnum spec" per previous owner. I have a buttload of receipts that go back to 1998, two owners ago. One group of receipts come from Performance Automotive Warehouse and includes a "cam P4120235" which when Googled says a Mopar purple...

Ok I know this is a well covered subject and have read many posts. Here's mine. Have a 440 with a Mopar dual plane aluminum intake. I have had an oil consumption issue that shows up as oil smoke at idle and low speeds when very warm/hot. Compression is 165-170 on all 8 holes. Does NOT smoke when...