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  1. GaryS

    Chrysler Marine engines

    When I worked at a Chrysler dealer in 1964, we received a tech bulletin concerning oil leaks at the crank seal on 318s. Several reverse rotation marine crankshafts were inadvertently installed in car engines and because a different pattern was used in the knurling process, oil was being drawn...
  2. GaryS

    Dumb question - difference between Dodge and Plymouth

    I once knew a guy with a photographic memory who was the parts manager at a Chrysler Plymouth dealer. I needed a bearing for an old flathead Plymouth transmission, but he said they didn't have it in stock. He came back with one for a Chrysler and told me to use it instead. When I asked what the...
  3. GaryS

    What's the deal with the Poly 318

    About 25 years ago I had a ’66 Coronet 500 with a mildly built 361 and my son had a ’66 Satellite with 318 Poly that was almost identically built. Their weight was identical within a few pounds. His was bored .030, and mine .040, both with stock compression, stock heads, Edelbrock...
  4. GaryS

    engine mount on 318

    My '66 Poly has three holes on each side on the block ears. The mounts themselves have four.
  5. GaryS

    Motor Mount Bolt Size?

    I'm resurrecting this thread out of curiosity, not dire need. I'm installing spool type mounts in a custom installation. The saddles were cut from a "newer" Dodge truck, and the mounts are stock Anchor replacements. A 1/2" bolt fits the hole in the mount, but not the slot in the saddle. The...
  6. GaryS

    How important is Ring gap orientation

    Years ago, I was driving my '55 Plymouth up a long grade when all of a sudden a cloud of smoke billowed out behind me. The engine had been overhauled 4-5k earlier and was not burning oil, so I was sure it broke a piston. When I tore it down, all I found was all the ring gaps aligned on one...
  7. GaryS

    Daughter needs Gas mileage from 273 commando

    Crappy fuel containing Ethanol is the biggest problem with old engines. I was working at a CP dealership in '64, and when brand new, a 273 with TorqueFlite and 3.23 gears would average 20 mpg and get 25 on trips, but not with today's government mandated fuel. My suggestion is to build it stock...
  8. GaryS

    Vacuum gauge inside of your car?

    Have a tach and vacuum gauge in the custom console of my '64 Valiant.
  9. GaryS

    Marine 273 build

    One thing I didn't see mentioned that some folks might not be aware of...counter rotating crankshafts are different than those in cars. When I worked at a Chrysler dealership, we received a bulletin that a few hundred 318 marine cranks had been inadvertently installed in car engines, resulting...
  10. GaryS

    Engine Weight Question

    Thanks for the info. guys. I thought it might be a little bit more, but I guess 40-60 lb isn't too bad. An aluminum radiator should be good for another 10 lb.
  11. GaryS

    Engine Weight Question

    Has anyone checked how much actual weight was saved when they replaced stock LA heads and intake with aluminum parts?
  12. GaryS

    Marine 318 engine

    When I was working at a Chrysler-Plymouth dealer in 1964, we got a notice that several marine cranks had mistakenly been installed in car engines, and to check for that problem if there were issues with seal leakage. That probably means that car and marine cranks were the same except for the...
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