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  1. 440-6pack

    WANTED: F78-14 Space saver for 1971 Challenger

    Hi, looking for a 1971 space saver for my 1971 Challenger. Complete assembly or just the rim as I have a tire. Please let me know what you have. Thank you
  2. 440-6pack

    FOR SALE NOS 1970-71 Challenger Cuda Space Saver Rim

    Hi, this is a long shot. Just wondering if you still have your space saver rim for sale?
  3. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Hey guys, i have another question unrelated to the engine. I found an original aluminum bellhousing. Just wondering if it is suppose to be bare aluminum finish or painted Hemi orange like the engine..?
  4. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Thanks for the advice. I’m still learning. I’m not in a hurry to get a new engine or rebuild one. And I’ve had lots of people respond to my ad since I’ve been searching for 71 Block. I just thought if it would increase the value a bit more that I would wait for one to pop up…I appreciate...
  5. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Hi RBBrun03, yes, the cast date is Oct 22,1970, which is good. However the stamp date is December 7,1970. I just want to confirm that the plant would have actually built and engine for a car 4 months in advance or if the build date should be a few weeks before the build date of the car, which is...
  6. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Super, in your opinion would it make sense that a engine built in December of 1970 would have been installed in a car with an April 6th production date or is the gap too big? I’ll be investing a lot of money in building and engine, I want to make sure I find a block that has the closest date...
  7. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Thanks, but do you believe it was built in December of 1970 or December of 1971?
  8. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Here is a picture of the stamp
  9. 440-6pack

    Need a Mopar Guru! Block stamp question...

    Hi, I have a 1971 Challenger RT 440 built on April 6th, 1971 and looking for a date code correct motor. I found one that has a casting number on the side October 22, 1970. The top plate is stamped G440, 12 7 HP. My question: #1) Is this engine built on December 7, 1970? or #2) Is this engine...
  10. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Hi Dolphin311, Thanks for the info. The forums I was reading said that anything over 20% leakdown was bad and that race engines operate around 5%. Removing the heads was going to be a spring project as I’m putting the car away for the winter. Question: I have 452 heads now from I suspect a...
  11. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Hi Rich, I still have to pop off the driver’s side valve cover and measure the valve movement, something tells me I have a valve that is not opening enough or broken spring.
  12. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Hey Austa, It never idled rough before the misfire started. I tried dribbling/squirting some fuel in the main carb when it was warmed up. It was hard to tell if it smooth mes out or was slightly flooding. It smithed out but dropped rpm then revved slightly higher. It definitely vibrated much...
  13. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Hey CudaKiller, I changed the plugs 3 times in less than 200 miles. No change. I have pinched the brake booster hose. No change. i have not disconnected the outboards but the base gaskets between carb and throttle body are wet until it warms up...see attached. Do I have to remove them...
  14. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Hey Rich, I haven’t pulled the driver’s side valve cover yet to check that all the valves are opening the correct range. I’ve replace every ignition component 3 times with no change: - Coil - ignition box - distributor and pick up coil - voltage regulator - alternator - ballast resistor Also -...
  15. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    I’ve never done a leak down test before this one. All cylinders were pretty even between 15-17psi. I didn’t listen in the tailpipe or carb. New developments tonight: 1- rad cap must be toast. It is not holding pressure. 2- While cruising tonight and accelerating mildly there was a backfire...
  16. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Also, I put the timing light on a spark plug wires and no intermittent spark/flash, it was very consistent.
  17. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Pick up coil was good. I measured temperature as the engine was warming up. Lots of variance in exhaust manifold temperature. Not sure what that means...
  18. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Oil pressure goes up to 3/4 while cruising, it climbs very slowly...
  19. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    The timing chain was a bit loose/stretched. It did not skip. I lined up new chain and sprockets 6&12 o’clock with cylinder 6 at TDC. I’m thinking I’ll have to pull heads, rods and lifters...sounds like the source of the problem.
  20. 440-6pack

    440 6-Pack misfire... Driving me crazy!

    Rough idle after burnout. I changed the timing chain after the burn out. It was idling rough before and after timing chain was changed.
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