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  1. Lefty71

    Dumb Question Of The Day

    I thought in some cases they were. Like all motorcycle pistons.
  2. Lefty71

    Trying to understand Manifold choices

    I'd leave it alone if you like the way it runs. Weight savings is truly meaningless unless the car overall performs better in a measurable amount!!
  3. Lefty71

    Can someone please help me ID this Carter carb # c5l3 9636s.

    I thought ALL 9000 series carbs were aftermarket, even the ones sold way back in the era when the cars were new?? So someone likely bought it from an autoparts store and tossed the original on his car??
  4. Lefty71

    Please read my bearings

    Is the motor from 1973 model year?? The thrust bearing is way worse on one side, more than the other. Was the really bad side facing the damper end of the motor, or the converter end of the motor??
  5. Lefty71

    Experience with burnishing lifter bores?

    I always use them. For the most part, they are NOT going to be super hard to pull thru, since the hole is supposed to be really close to perfect already anyway. I have really good success with them (lifters always spin after use), but I've never tried the situation you describe. In your...
  6. Lefty71

    Small block bottom build horsepower limit

    From his title, I was'nt sure if he meant "how much will it make" or "how much will it take" before it splits in half like a small block Ford lol.
  7. Lefty71

    Hughes STL5460AS-8 vs Lunati 40200913LUN cam

    Gettin' the popcorn bucket for this one.... I did'nt think rollers and flat tappets compared apples-to-apples well?? Besides the fact that rollers welcome more aggressive profiles without severe wear and tear.
  8. Lefty71

    Engine swap

    A call to A&A Transmission in Canby, Indiana may help with both that and the spacer.
  9. Lefty71

    Cleaning old unused hydraulic lifters

    I have'nt disassembled a hydraulic lifter in eons. Are they 100% metal parts, and the ball to seat is metal to metal?? Even the plunger assy. has no rubber parts??
  10. Lefty71

    Identify these rocker arms

    I didn't think Manley manufactured?? I thought they only resell high quality parts with their name on it?? So, could still be Crane really.
  11. Lefty71

    My attempt at speedmaster heads and moving the pushrod.

    When you are done, will this work with such-n-such intake manifold, or is this one gonna need a custom sheet metal job??
  12. Lefty71

    Learning about the Cast 340

    This may help you on your journey.... Did you look at the crank and main bearing shells for dates and info?? It may help you figure out if this motor has ever been apart before, which should go a long way towards answering if this motor is properly balanced, or if you really need a machinist...
  13. Lefty71

    Learning about the Cast 340

    Is that number actually on the crank you have?? If you can possibly date it, you'll notice it was according to lists, never used in a 340 or 318 in the same production years (early for 340, later for 318).
  14. Lefty71

    Piston Identification

    And sometimes sold as "Manley", "DCC", "Mopar Performance", Etc.
  15. Lefty71

    360 Pistons

    Most people have been AROUND CARS their whole lives.
  16. Lefty71

    360 Pistons

    Either are OK, and used by jillions of people. Neither would be my choice, but it really depends in the budget and goals for your particular build. To put it another way, it takes a lot more detail to give a good answer to an important question.
  17. Lefty71

    Compression Ratio

    My two cents....nearly worthless... but the sooner this guy gets something going by the seat of his pants the better. I have a relatively low compression 400 with an awesome cam that will blow your sox off... I know it can be done. He needs to get on with it. :steering:
  18. Lefty71

    340 shedding piston material

    I'd get it out of there before it "sheds" the rest of the piston in one lump sum.
  19. Lefty71

    purple cam kit P4452759 can't find the spec for it anywhere. Help please!

    Mopar Performance P4452759AE Mopar Performance Purple Camshaft Kits | Summit Racing
  20. Lefty71

    Why is it...

    Mopars are at the end of the track before they hit 5800 rpm. :poke: No one wants to see my lobes @ 50.
  21. Lefty71

    PCV setup with Mopar Performance valve covers

    Typically one side allows fresh air in, and the PCV valve sucks it out, and of course back into the carb, which is on the other side of the pressure zone (piston rings). You would'nt want to pull from both sides without a breather somewhere....although that's kinda what a Vac-U-Pan does.
  22. Lefty71

    Adjustable rocker clearance specs?

    .015 is what we always used... however as I'm sure you already know looking at the factory layout, it's just not the most critical clearance measurement in the engine. Less than. 015 may be asking for some trouble tho.
  23. Lefty71

    Discontinued oil filter

    Napa is also Wix, just rebranded from what I've been told.... Someone used to post up an occasional great deal on the Wix by the case, but I've not seen that in a while.
  24. Lefty71

    WRIST PIN FIT?

    We did it once on a 440 that someone had messed with. Rod ends were a little bluer than I would have liked and the pins wouldnt quite slip-fit in the pistons. We reconditioned them all. Unfortunately I dont have infor to report about how it tunred out because that project is still "in...
  25. Lefty71

    Cam lobe discoloration normal?

    IIWY, I'd run a good oil as others have said..... I would NOT pull it apart if it runs fine. I would do a compression check to see if the numbers are consistent between all cylinders. Also, is this a mechanical or hydraulic cam?? If it's not hydraulic, just check your lash at the rockers on...
  26. Lefty71

    Did the early 273 use a unique intake manifold?

    Wowwee!! You are a proof-reader lol
  27. Lefty71

    Valve Covers with Harland Sharp Rockers

    These are not cheap, and I personally have always gotten away without them, but they look like the hot ticket; MediceMfg ...Valve Cover Spacers - Mopar
  28. Lefty71

    What's Up With This Picture?

    No New Yorker of that vintage with a small block....440's only
  29. Lefty71

    Poor quality lifters

    Kinda surprised no cam experts have chimed in (which I am not), but there is a difference in the ramps on the hydraulic and mechanical cams..... otherwise the lifters COULD pretty much interchange no big deal. I would think hydraulic cam ramps would/could be more aggressive than mechanical...
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