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  1. octanejunkie

    Reading HR cam question - HELP!

    I am trying to "read" my new cam Cam is a 287/298 duration with .512/.525 lift Reading the lift at the lobe, I am getting .308 and .313 between intake exhaust and intake. Simple math tells me .308 x 1.6 = .492 .313 x 1.6 = .500 I read the cam installed in the block, off the lifter...
  2. octanejunkie

    Cam install question - HELP!

    Ok got a roller cam for my '99 magnum 360, cam bearing were already installed by PO. Cleaned and lubed shaft and bearings. Cam slides in easily through all bearings except it WON'T SEAT -the front bearing seems REALLY tight, like tap it in with a mallet tight; so I did Tried the cam backwards...
  3. octanejunkie

    Oil pan options for '99 Magnum 360

    So the oil pan I got with my motor is an LA 360 and doesn't fit the 1-piece gasket that came in my complete engine kit gasket set for 5.9L magnum. Googling around, I find PN 53020918 for the 360 Mag, but what are the aftermarket options? Looking for an oil pan now...
  4. octanejunkie

    Help with cam choice for magnum 360 please

    It's been a while since I've been active here, or working on my mopar project but here is a refresher. So I am building a '99 Magnum 360 motor for a 71 Scamp. Car supposedly has a "built" 727 3-speed and a stock 7.25" rear end. I have a posi carrier with 2.96 gears to drop in place of the...
  5. octanejunkie

    My 360 Magnum build thread

    Starting this thread to chronicle the build of an engine with text and photos for all to see. When completed, this motor will do into my 71 Scamp. I acquired a complete engine "kit" in the deal with the car this past christmas, the kit as I call it consisted of a '99 .030 over 360 magnum block...
  6. octanejunkie

    Plug check

    Pulled a few spark plugs to take a look, #6 looks like it running lean, the rest look good, here are a few pics Spark Plug #2 Spark Plug #6 - looks frostier in person; too lean? Most all the plugs look like #2 and are dry around the threads. Notice the threads on #6 look a bit wet...
  7. octanejunkie

    Excessive Fuel Pressure or Bad Carb?

    The previous owner of my 71 Scamp did a few upgrades planning on running the car, one of his mods was an electric fuel pump, an autozone special by appearance. When I changed the oil on the car I got about 7+ quarts of black stuff with the consistency of milk out of the pan and it smelled like...
  8. octanejunkie

    My potential compression ratio

    OK so after much-ado about quench and what not, here is the workup I did on kb-silvolite.com using a $180 worth of Cometic head gaskets, I guess felpro's .040 compressed thickness will work too and lower the CR a wee bit with it's larger bore diameter . . I'm obviously going for optimal quench...
  9. octanejunkie

    The quest for quench

    In conversation with Dave (dgc333) the subject of quench came up and a discussion ensued, of course more research was required on my part, and I found this article. Anyone not familiar with what quench is please read the article I linked to. But reading the article and getting a general idea of...
  10. octanejunkie

    Cylinder head swap challenge - be warned, NOT mopar

    OK so just to be clear, I am working on several projects, Ford, Chevy and Mopar; I like to be well-rounded in my interests and find playing with the "big 3" very enlightening. That being said, I am doing a GT40 head swap on a 67 Mustang. The GT40 heads I pulled (casting F3ZE-AA) are 60-63cc...
  11. octanejunkie

    CC'ing cylinder heads

    Besides the kits at Summit/Jegs I'd love to hear how some of you guys have cc'd the chambers on cyl heads I went looking for syringes on the net and easily found 70cc, but was looking for 80cc, just to have. A plastic plate or CD as was mentioned elsewhere which can be easily found locally...
  12. octanejunkie

    Magnum 360 heads "best" for my build?

    So I have a set of Magnum heads ready to bolt on. After some careful consideration looks like I can do about a .510 lift with the right springs. Considering the XE268H cam http://www.summitracing.com/parts/CCA-20-223-3/ Block is a .030 over '99 magnum. Will be going into a '71 Scamp in place...
  13. octanejunkie

    Optimum LCA

    According to this article by my hero David Vizard, there is only one LCA that is proper for a given engine, to quote: The article seems abridged as he does not specify HOW to determine the correct LCA... Anyone wanna throw in on this one?
  14. octanejunkie

    Magnum 360 Head Gaskets

    So I am planning my 360 magnum build and started to look for head gaskets to plug into my comp ratio calc - cannot find too many head gaskets at Summit, and most of the ones I do find are OEM replacements w/o specs like bore dia and compressed thickness I need a proper head gasket for a magnum...
  15. octanejunkie

    Water Pump Pulley Question

    Is there a 2 groove water pump pulley for SB mopar, specifically the 318 V8?
  16. octanejunkie

    71 Scamp Engine Check

    Got under my new Scamp for the first time yesterday, got all over it in fact, and got real familiar with it; overall it is in pretty good condition. There was a pretty bad oil leak when it was delivered to me, the seller thought it was the rear main seal - always a handy place to leak from, no...
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