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  • Users: murfman
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  1. M

    Quick question

    I’m getting ready to install my ported EQ heads on my 2 408 motors. Before I install them, would it be wise to take a small sanding disc or roll to the edges of the combustion chamber where the chamber meets the machined deck surface? Or am I over thinking it? The guy that ported my heads and...
  2. M

    Magnum Rocker arms

    I'm looking at the Harland Sharp pedestal mount rocker arms for my EQ CH318 B heads with a Hughes cam Do I need the adjustable arms, or can I use the non adjustable ones?
  3. M

    408 build Horsepower estimates

    I am building 2 408 Cu IN Magnum based engines for my boat, Here are the build specs: Scat Cast 4" cranks, Scat H beam rods W/ ARP 2000 bolts, Icon 983 forged pistons,( should work out to 9.2 to 1 compression), Hughes SER 1828ML-14 cams, ported Enginequest Magnum heads with 2.02 intakes 1.62...
  4. M

    mechanical fuel pump and timing chain oiling questions

    Over the years it seems Ma Mopar did things differently for timing chain oiling, someimes a small hole in the gallery plug, sometimes a bolt with a hole in it. and sometimes nothing. I am building 2 408 Cu In Magnum based motors for a marine application, I am running the marine timing chain...
  5. M

    408 questions for a boat

    No not a C boby, a real boat... It's a 27' Magnum Marine offshore type hull with twin small block Mopars (Originally 340 Super Bee IIIs) I have posted here before looking for crank and bottom end advice, and I have the short blocks sorted out, Scat Cranks and rods, Icon 9.5 to 1 pistons...
  6. M

    Magnum Valves

    Anybody use these valves? I've used SI Valves in the past with good results, but these look pretty good. http://www.ebay.com/itm/MOPAR-Dodge-JEEP-MAGNUM-2-02-1-62-H-P-318-360-Stainless-valves-100-/381464648862?hash=item58d1109c9e
  7. M

    Crosswind Intake manifold question again!!

    I am gathering parts to build 2 small blocks to put in a boat, I have 2 5.9 magnum motors that I want to use but I need to use the LA timing chain covers to mount the marine water pump and fuel pumps, I know about the cams being different, but I can take care of that. My concern is the fact...
  8. M

    Oddball stroker question

    I'm a life long Mopar guy and a life long boat guy. I have been boat less for about 12 years, and that is changing at the end of this month. I am picking up a 1973 27' Magnum Marine sedan that is powered by twin small block Chrysler marine engines. I'm not sure yet if they are 318s or 340s...
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