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  1. mderoy340

    head flow experts need opinions on intake flow

    I picked up an Edelbrock Magnum head 5.9 with 11:1 Ross flat tops, M1 single plane intake. Port matching intake and exhaust and wondering what improvements need to be done with the chambers. Should I unshroud the intake a little? I'm also pulling the 380HP hyd roller cam and going solid roller...
  2. mderoy340

    Tight lash setting solid flat tappet cam

    I'm currently running a Comp Cam XS274S SFT at .012/.014 lash RHS iron heads and hughes Al rockers. I set lash cold and have .001 change cold to hot. Comp cams specs the lash setting at .016/.018 When I installed the RHS heads I knew a future cam change was going to be necessary to get the most...
  3. mderoy340

    SCE head gasket opinion

    Has anyone used this .060 compressed gasket? I'm putting Indy LAX heads on my 340 with above deck pistons and need to find thicker gaskets. SCE Pro Seal Composite Head Gaskets 569096
  4. mderoy340

    Wiseco 360 piston weight?

    Anyone know what this piston and pin weight? Thanks for any info. PTS527A3 Wiseco Flat Top 10.4:1, 4.030 Bore - SB Chrysler 360
  5. mderoy340

    402 MP crate motor pistons?

    Anyone know what pistons were used with the 402 Magnum crate motors? 402 Magnum Better make sure your taillights are working, because that's all your competition will see when you drop in a Mopar Performance 402 Magnum Crate Engine. This 4.00" stroker engine generates a whopping 435 horsepower...
  6. mderoy340

    cam timing question

    I'm degreeing my cam and it is 4* retarded when installed straight up. I can only advance the cam 2* at the crank with the timing set I have. Anyone know approximately how many degrees timing changes by advancing one sprocket tooth at the cam? I do have an offset cam key set but if I can...
  7. mderoy340

    magnum roller rockers

    http://www.hughesengines.com/Index/products.php?browse=category&level0=Qi0gU21hbGwgQmxvY2sgRG9kZ2UgTWFnbnVt&level1=Um9ja2VyIEFybXMgJiBBY2Nlc3Nvcmllcw==&partid=25405 Has anyone used this hughes kit on OEM magnum iron heads? Was the geometry good? Are the rockers a true 1.6 ratio?
  8. mderoy340

    milling Magnum heads

    Anyone know how many CCs a .010 cut is for closed chamber OEM Magnum heads?
  9. mderoy340

    magnum 360 300hp crate specs

    Thought I'd share some specs. on Magnum 360 motor. 93 block OEM crate motor 360/300hp The block is not drilled for head oiling. Cam 195@050 .433 lift Motor pulls to 4800 and is done. Upgrading cam and took the heads off today to measure everything. Heads True OEM rocker ratio is 1.66...
  10. mderoy340

    valve guide boss diameter OEM Magnum head?

    Is it .530?
  11. mderoy340

    360 LA cam selection

    upgrading a 360 for my brother's 318 66 dart. Car currently runs 13.5 101 mph Car as is: 3000 lb 3.55 SG 26x8 QTP slick 2500 stall 904 stock gear set 9:1 318 268H Comp cam, hughes 1.5 roller rockers, rhoads lifters home ported 360 smog heads 1.88/1.6 milled to 62cc sanderson 1 1/2 inch...
  12. mderoy340

    discontinued mp roller cam P5249663 info

    Anyone have any experience with this discontinued 360/300hp crate motor cam replacement kit P5249663 274/264 duration .433/.430 lift. Maybe someone has an old mp catalog or cam card?
  13. mderoy340

    340 cam help

    Need some input for solid flat tappet cam street/strip mostly strip. 1970 340 true 10:1 Airgap Demon 750dp J heads 2.02/1.6 home ported summit 1 5/8 headers MSD 6AL 67 dart all steel no interior, 3.91 27x8x15, 904 low gear set, sub frame installed. estimate 3100 lbs. Will get a converter...
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