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  1. 273

    Newbie from Canada

    Welcome aboard, I'm from Oshawa too, fixing up a yellow 68' valiant myself. Hope to see your car around the streets some day.
  2. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    Magnums are basically a head package they switch the rocker system to Chev type. The things that effect the swap is intake bolt holes are on a different angle most popular intakes have version for magnum engines. 5.9 are externally balanced like 360 just a different weight you'll need an...
  3. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    I don't think a dial caliper that accurate enough try it. No magnums don't come with roller rockers but ya you can use chevy along as the got the same stud size. The push rods would have to be longer and be able to past oil and you might need new lifters if your can't past oil. But roller...
  4. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    If your happy with what you got just want a little more than mill your heads .05 get thinest head gasket you can should wake it up a bit more, can always do the bottom end later or switch some else like an Magnum or do a 390 stroker with your 318.
  5. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    To check how far the piston sits below the deck you need a dial gauge. Magnums have roller cams but you can put in a flat tappet cam with the right push rods just long as your cam doesn't lift much more than .500" with 1.6 rockers or you need to get the heads machined for higher lift and you...
  6. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    Well if you got the heads off measure how far down the piston is at top dead center it could be 0.080 or less, less is better, With your settup now you got around 7.5:1 CR you need at least 9:1 CR to use a good cam. Stock 360 heads are 68-72 cc and to lose 1 cc you have to mill .0048 off the...
  7. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    360 heads needed to milled a lot to get good compression close chamber heads are easier to get 10:1 like Magnum type heads or 318's 302 heads 85 or newer 318 have them but need to be heavily ported.
  8. 273

    New to the mopar world,Need help with 318 build..pleeasse..

    Do a Google search "400 hp 318" there's like 5 builds using different heads most use KB pistons zero decked and milled heads to get 10:1 compression, rpm intake, 750 Holley and 268-286 degree cam.
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