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  1. straightlinespeed

    J (915) vs. Magnum heads

    Im currently running a set of magnum heads on my 360. I have a lead on a set of 915 J heads. Can someone please tell me the differences of the two heads and if one is better than the other? Also what is a fair price for a set of bare J heads that have been magnafluxed but need a valve grind.
  2. straightlinespeed

    LA engine Magnum Heads Pushrods?

    Guys what length pushrods should be used in a LA Engine with Magnum Heads. Are they suppose to be 7.650"??
  3. straightlinespeed

    Spark Plugs for LA w/magnum heads

    Hi guys, I was just doing some research on plugs and starting to think I have the wrong plug in my engine. I have a LA360 with magnum heads and running Champion RC12LC4 which are the correct plug for magnum heads, but cant find any heat range info. I based this off of a 98 Ram with a 5.9. If I...
  4. straightlinespeed

    hooking up a carb with magnum heads and air gap intake

    I'm starting to hook everything up on my engine. I've got a LA 360 with magnum heads and a air gap intake. I'm wondering what you guys do to hook up the throttle and the kick down linkage? I've thought about just bending the original LA bracket but not sure if the angles will work.
  5. straightlinespeed

    Magnum Heads with LA Valve covers

    I've read a few posts on other sites that its recommended I should be running a MP valve cover gasket to prevent leaks. Well no dealership has the gasket and Summits are on back order. Not to mention they are $60. So with that being said those of you that run this same set up what are you using...
  6. straightlinespeed

    360 Magnum heads conversion

    Hi guys, Im swaping magnum heads onto my LA block and wondering if this conversion kit will work? I dont have a roller cam though but not sure if its needed? Or am I better off just sticking with the stock stuff...
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