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  1. 3

    What to expect from 1970 383 HP

    With my 340 with aluminum top end in the car, spare tire, 3/4 tank of gas full street tires all around its 3880 with me. No spare, on slicks and skinnies, and less gas im in the 37xxs probably. I dont know how much a 383 will add to weight though
  2. 3

    What to expect from 1970 383 HP

    Carb or Keto the 340? Also, what's a 432? I think the 383 with a 440 crank is 426 at std bore and 438 at 30 over, unless I'm misunderstanding Sorry for not understanding, never heard about it
  3. 3

    What to expect from 1970 383 HP

    Yeah, I also like the 383 though since if bottom ends correct, itll have better than 7.5 to 1 comp unlike a smogger 440. It already has a forged crank, unlike most smogger 440s. My point is im not looking for 500 all motor hp, if I can get honest 420 im happy with myself. I think that's good...
  4. 3

    What to expect from 1970 383 HP

    You think a cheapo rebuild and nice paint will take this 300$ 383 into profit for me? Hell 300$ in parts and if it runs, do you think I can get 1000$ out of it at least?
  5. 3

    What to expect from 1970 383 HP

    Im gonna need the bottom end with 4.56s? I already have a massively overcammed 71 340 that someone shoved 8.5 to 1 comp pistons, I think the 383 should have more low end at any rate I will say the 340 takes off when you get past 3k, aluminum heads, headers and intake with a 750dp let's it keep...
  6. 3

    What to expect from 1970 383 HP

    Oh it hasn't ran recently, it just ran before it was pulled >10 years so it probably needs rebuild I also dont have a run stand and I dont wanna swap in a stock 383 in place of my 340
  7. 3

    What to expect from 1970 383 HP

    Well, I will do that, I just got it last night, again haven't even taken it out of my Jeep, but it so far checks out. Has the 383 hp intake and 906 heads. Also, wouldn't my existing flywheel and clutch work? They're both internal balance motors, and i already have upgraded flywheel and clutch so...
  8. 3

    What to expect from 1970 383 HP

    Hell i dont play with the highway, its sucks sitting at around 3.5k at 60mph. I already have in the 4.56s with my 340
  9. 3

    What to expect from 1970 383 HP

    Well in that case a hp 383 with a 484 cam, headers and 440source heads and a performer rpm in front of a 4 speed with 4.56s and slicks should do well huh? I also have a nitrous plate kit sitting in the corner of my garage with a full bottle, set up for a 100 shot....
  10. 3

    What to expect from 1970 383 HP

    Well, despite all better judgements in me for building a small block stroker or a 440 I snapped on a complete aside from carb 1970 383 magnum out of a 1970 roadrunner. Hey, it was 300$ and it was a impulse buy what can I say. Thing still has oil in it and "ran when pulled". Haven't even put a...
  11. 3

    Help with 340 build - chicagoland area

    Well, i ended up getting a complete 1970 383 hp from a roadrunner. Supposedly running when pulled, and it does still have oil. I'll go through it completely, but I guess we are going the big block route. What can I expect for potential out of a 383 stock bottom end if it all checks out as good...
  12. 3

    15 x 10 wheels on a 71 roadrunner, bs needed

    Yeah, I got 15x10s with 5.5 inch backspace, with 28 x 10.5 - 15 it needed a 1/4 inch spacer, and its a TIGHT fit.
  13. 3

    Help with 340 build - chicagoland area

    Well, im hoping limiting the amount of parts swapped will help me out with the whole questionable parts thing. Im pretty much just swapping pistons and bearings if they need replaced. Thought process is hopefully if they're already running alright now, they'll run alright when I disassemble and...
  14. 3

    Help with 340 build - chicagoland area

    I'm gonna be doing that, going to mo power madness in bleak hopes someone else has pistons used that would work for me, and also seeing if anyone could help me at the next chicago mopar connection chapter meet but either way im gonna FAFO and hopefully not break anything major along the way...
  15. 3

    Shifter issues

    Well, sounds like I'm in for new shafts, would you say its better to buy the individual shafts, or would it just be worthwhile to get the whole side cover assembly? Also, is the 70 and earlier ball and detent style of side cover better than the 71 interlock style? I've seen some things online...
  16. 3

    Shifter issues

    Sounds like something not that hard, I hate removing those g clips though, absolute hell under the car for me
  17. 3

    Shifter issues

    Well, I dont think it is. Its done this time and time again, from when I had old shift levers in and the new ones when I first installed them and they were tight, I definitely think it exacerbated the issue though To further help you guys understand a bit more too, I can have a friend record...
  18. 3

    Shifter issues

    So, was able to finally get a cam under and record. Holy hell i need loctite on those bolts, that probably contributes a good bit to my issue. I tightened them down when I replaced the forks very snugly. Second thing, after recording the video, it now doesn't have that lip anymore. I dont get...
  19. 3

    Help with 340 build - chicagoland area

    Its a 5 gram difference, with the l2316f being heavier than what I have now. I've done research here and on FABO, and watched videos on it. It would be less than a 1% bobweight change, so it should be okay is what I've gathered. They're my pistons but with a 1.840 compression height instead of...
  20. 3

    Help with 340 build - chicagoland area

    Crosspost from FABO, sorry if not allowed or if you've already read it have a 71 340 that's in need of a rebuild, I'm just unsure and kind of worried about doing it myself. It has already been freshly rebuilt, but the guy who last did it mixed and matched parts, it has 30 over stock replacement...
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