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  1. Lumpyidle

    Post your 13 sec combos

    1970 Duster Fastest time is 13.6 @ 100mph. Stock 5.9 directly from a junk 2000 Durango 600 Holley dual feed vac secondary on speedmaster "air-gap" dual plane Holley blue fuel pump cheep summit headers and 2.5 inch exhaust stock converter and 904 3.91 sure-grip 245/60-15 Cooper cobra radials...
  3. Lumpyidle

    fan shroud with magnum

    When I swapped out the /6 for a 5.9 Magnum, I used the radiator and fan that was in the car, along with the fan and fan clutch that dad had put in years ago. I did have to move the radiator up about a half inch, and then turn the fan shroud upside down. It didn't have the "Caution Fan" flag on...
  4. Lumpyidle

    Small block 904 vs /6 904, any difference to drive shaft length?

    I just did this swap last weekend. It's a direct bolt-in along with the motor. When you change the rear-end is where you'll have the length issue. Dad already had the driveshaft cut when he changed to an 8 3/4 rear end years ago behind the /6. So when I swapped the 360/904 in place of the...
  5. Lumpyidle

    New guy from Central AZ

    Welcome! I too am pretty new to the site, and I am also an AZ resident and owner of a pair of '70 Dusters! I'm also a resident of Earth for 40 years now too! :)
  6. Lumpyidle

    [Found!] SBP wheels

    They look good! How much for shipping to Wittmann AZ 85361?
  8. Lumpyidle

    [Found!] SBP wheels

    Looking for 15x8 small bolt pattern wheels. Just need a pair if not a whole set. May settle for as small as 14x7. At a minimum I just need a pair until mid January as I’m taking my Duster to the ZipTie drags in Tucson and all I have are skinny 4 1/2 pizza cutter stockers. Located in the...
  9. Lumpyidle

    Do i have Manual valve body ??

    Oh yes I should of specified. 360 Magnum. Thanks!
  10. Lumpyidle

    Show us your home made tools

    Few years ago I built a door jack out of some iron I had around, and an old camper jack. Adjustable and goes pretty high. Helps when R&I door or just simply rebuilding or changing hinges. Saves the back, and lower corners of doors, and more stable than a floor jack!
  11. Lumpyidle

    Show us your home made tools

    Probably been done to death here but I didn’t look through all of the posts. Very common but simple and basic home made tool for installing harmonic balancer. Technical name for it is “Harmonica balancer putter-on’er”. I had enough rod that I made three of them if anyone needs one. After I...
  12. Lumpyidle

    Do i have Manual valve body ??

    Thanks. This is my first time cracking open a Chrysler transmission. Looking at the date code it’s a ‘73, and A-904-LA cast in the case. I figure it’s just a run of the mill 904. It came out of a full size car going into a ‘70 Duster. Anything I need to be concerned with compatibility wise...
  14. 1970 Duster project(s)

    1970 Duster project(s)

    Dad’s 1970 Duster purchased new late ‘69. Estimated about a million miles on this daily driven A-body. Original /6, 904, Power steering, manual brake bench seat, green on green. Car was rear ended twice buckled both quarters, rear rails and center hump in the floor pan between the seats. My...
  15. Lumpyidle

    Do i have Manual valve body ??

    Howdy! I just opened up an A-904-LA case to change the filter before putting it in my Duster. Bought it from a guy who had it in a full size car behind a 318. The plate has 512 stamped in it. Is that stock? I was going to order a shift kit for it but now I’m wondering if it already has one...
  16. Lumpyidle

    [FOR SALE] Mopar M1 single plane magnum intake manifold new

    Inbox is full. Interested in this intake if it is still available thanks!
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