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  1. CompSyn

    SOLD Project: RM23 1969 Road Runner

    Project Car needing restored: A genuine RM23 1969 Plymouth Road Runner. Numbers matching 383HP. Original 727. Serious inquiries feel free to ask for additional info/pics. Located at Lewiston Idaho 83501. Asking $12,000 PM me. F5 Limelight Metallic paint, White Vinyl Top, White pin stripes and...
  2. CompSyn

    FOR SALE 1968 Plymouth Satellite/Road Runner/GTX - Dated Coded Wheel Set

    1968 Plymouth Satellite/Road Runner/GTX - Factory Wheels & Wheel Covers ***Correct/Original/Date Coded*** Set of five(5) Motor City 14x5.5” inch steel wheels P/N #2534702 - Date Coded April 25th 1968(all five) Set of four(4) 14” inch Plymouth Sport Wheel Covers P/N #2881773 Set of ten(10)...
  3. CompSyn

    Engine inspection

    More info. Mr.6pack Camshaft. Sorry guys but all this talk about camshafts got me exited enough to re-dig up this older thread quote from moparts regarding the Mr.6pack camshaft: I've spoken with Bob on the phone and have acquired his camshaft for my stock 383HP. I don't have my engine or...
  4. CompSyn

    On the way to a local car show and this happens

    Interesting topic. I was just over at TireRack.com looking at BFG T/As. They have some on closeout with the country of origin, USA. Then they have the same exact size NOT on closeout at a higher price point. Country of origin, Mexico. :facepalm:
  5. CompSyn

    Engine inspection

    Mr.6pack A lot of good suggestions in this thread. Here are a couple of mine: The advertised compression ratio of 10:1 in a stock 68/69 RR 383 was optimistic. 9.2:1 on a good day was more like it. And while there are many aftermarket piston choices out there, last I looked, none have the...
  6. CompSyn

    Post what wheel dressing your 383 RR shipped with?

    Cool! So here's a question for you. Do you have the original lug nuts on those?
  7. CompSyn

    Post what wheel dressing your 383 RR shipped with?

    Thanks for the reply. For some reason your link isn't working for me.
  8. CompSyn

    Post what wheel dressing your 383 RR shipped with?

    Hey everyone, I've been researching the factory original wheel dressing options available for 1969 383 equipped Road Runners. Or if they came with 14" Road Wheels? When comparing the 1969 parts catalog, the sales brochure, and the salesmen pocket guide, it leaves me to wonder the actual reality...
  9. CompSyn

    WANTED 68-69 Plymouth 14" inch Wheel Covers

    Found a set. No longer needed. Thanks!
  10. CompSyn

    Engine Oil opinions

    Latest diesel oil tests... You're welcome! And here are the latest PQIA test results for Shell Rotella T4 15W-40 (CK-4). Rotella is yet again good-to-go: ZINC: 1203ppm PHOSPHORUS: 1080ppm LINK: http://pqiadata.org/Shell_Rotella_T4_15W40_4192017.html But, beware, the new...
  11. CompSyn

    WANTED 68-69 Plymouth 14" inch Wheel Covers

    I am looking for a good set of these 14" inch wheel covers, part number #2881773 . Chrysler Parts Catalogs show they were used on 1968 and 1969 Plymouth Fury, Belvedere, Satellite, Road Runner and GTX models. May consider trading my Plymouth Division Dog Dish hubcaps for a set of these covers...
  12. CompSyn

    Engine Oil opinions

    New Shell Rotella T5 10W-30 API CK-4 Here's a fresh off the press oil analysis of Shell Rotella T5 10W-30. It's the latest API service classification (CK-4) and still has a healthy dose of ZDDP. Images posted below... OIL: Shell Rotella T5 10W-30 ***API CK-4*** LAB...
  13. CompSyn

    Engine Oil opinions

    Back in the day... During the 1950s and 60s and 70s, API set Zinc recommendations at 1000-1200ppm, e.g., API SC, SD, SE Currently, Shell Rotella T Triple 10W-30 still has a Muscle Car era dose of Zinc at 1225ppm. IMO, additizing past that is unnecessary. August 2016 Rotella 10W-30 test...
  14. CompSyn

    Transmission Gear Oil

    SAE 75W-90 API GL-4 - LINK
  15. CompSyn

    69 Rear Leaf Spring Rebuild Question

    Frank Badalson Hear good things about Frank Badalson. He even has restoration services if you have the coin. http://www.rogergibsonautorestoration.com/aboutus.htm Catalog: http://www.rogergibsonautorestoration.com/images/2015_catalog.pdf
  16. CompSyn

    Help with camshaft

    Meet Mr.6Pack , Bob karakashian: Reading info links... http://sixpacksixbbl.homestead.com/mrsixpack.html http://sixpacksixbbl.homestead.com/mrsixpackhof.html http://sixpacksuperbee.homestead.com/MRSIXPACK.html Bob's engines in action: https://youtu.be/OFaPlDt2jt4
  17. CompSyn

    Help with camshaft

    I used to have a 440 with the 484 Purple Shaft. I would not recommend it in a slightly warmed up 383 given your projected driving habits. If you want to do an old Purple Shaft, I'd consider the 272 instead. But that wouldn't be my first choice for a camshaft. I'm building a stock 69 383HP...
  18. CompSyn

    383 piston suggestion, help

    Wildly Optimistic Here is a quote from JohnRR from the moparts forum: John goes on to say that a factory a 68/69 383HP would have been "9.2:1 at best". So one could say that the advertised 10:1 compression ratio was wildly optimistic. A Sealed Power forged 383 piston has a Compression...
  19. CompSyn

    I think the 484 has to go

    I thought about aftermarket rocker arms as well. Two things swayed me. (1) They won't fit under stock valve covers. (2) Additional parts to go wrong makes me a bit nervous. Not much to go wrong in a stamped piece of steel. One of the things I like about the Bob K Mr.6Pack camshaft is he...
  20. CompSyn

    I think the 484 has to go

    I understand. I didn't think you were "disparaging" Bob's cam. I too have Bob's cam going into my engine. In my case, it's a 383 Road Runner engine. I suspect it will have a little more rump, sound/idle wise, with the 383 combo versus a 440. I understand the 440s with Bob's cam are sewing...
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