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  1. K.O. SWINGER

    Block girdles, yay or nay

    So let's face it opinions/facts are constantly changing on a lot of popular upgrades . Many preferred parts have been ridiculed over the years as no good junk subpar etc only to find out that in the right hands and combinations there as good as the new stuff sometimes even better. The last...
  2. K.O. SWINGER

    Head gasket sizing

    My question is this when determining what size of head gasket to run in relation to the bore size should the gasket be the same exact size as the bore or is it optimum to be a little larger? Keeping compression as high as possible is also a consideration.
  3. K.O. SWINGER

    Troubleshooting help wanted!

    So you guys are making me lazy, instead of grabbing my volt-o-meter maybe you can steer me in the right direction I'm kind of scratching my head. I started the 340 swinger yesterday and after running about 30 seconds it just died quickly. As I try to restart it nothing, no cranking no clicking...
  4. K.O. SWINGER

    Big block / small block Rocker question

    So okay pretty simple question but all I've only really worked on is small blocks what is the difference between a big block rocker arm and a small block rocker arm if they're both 1.5 I realize that the spacing will be different due to the larger head of a B or RB but it's a rocker actually...
  5. K.O. SWINGER

    Bearing recommendations and thoughts please

    So it's been over 20 years since I went through my 340 and so much has changed. I'm asking for recommendations for main bearings, rod bearings, cam bearings etc. As it stands now I believe it will be a 374 cubic inch 340. When it was put together it had Federal Mogul mains and cam bearings with...
  6. K.O. SWINGER

    Mopar 284 solid lift break in

    So I'm going through my 340 this winter and I was thinking that I should break in my new flat tap solid lift 284 camshaft in my 340 before I rebuild it, my thoughts are that if something goes wrong I'm not sending scrap metal through my fresh rebuild. Also my springs are softer and it just seems...
  7. K.O. SWINGER

    450 to 500 hp 4 speed crank choice

    I would like seasoned opinions on crankshaft material choice for a 450-500 hp 4 speed. Big clutch and 275 drag radials am considering a 3.58 stroke 340 . My question is would you feel good with a high-end cast crank like a 900 series scat or would you just bite the bullet for forged and never...
  8. K.O. SWINGER

    Camshaft throwdown

    So even though Mopar performance camshafts have been discredited in some people's opinions I am a fan of the old DC grinds when used in inappropriate combinations. My question is how would you feel these two camshafts would perform in comparison to each other. One is a hydraulic oval track grind...
  9. K.O. SWINGER

    Multi-angle valve jobs explained.

    I ran across this video which I found to be very comprehensive on the subject and someone who speaks in layman's terms I believe he is an engineer for Yamaha or at least in their development program check it out. It did change my opinion a bit on the subject! youtube.com/watch?v=8NTgcxIqnUo
  10. K.O. SWINGER

    197340 swinger motor mount bracket placement

    I have been fighting a motor shifting problem and I'm wondering if I have my motor mount brackets connected to the block improperly. I need to know if the brackets for the motor mount bolt to the front of the block eyelets or is the bracket position behind the block eyelets
  11. K.O. SWINGER

    Motor shifting

    So my 340 6 pack is developed a new issue of late. After shifting to nitto drag radials my motor wants to pull back where the mounts meet the pads I run solid motor mounts . I've loosened everything up got it straightened up and tightened everything down but now I noticed it's pulled back again...
  12. K.O. SWINGER

    Rod breakers wanted

    After looking at the posts that were submitted on the crank breakers wanted thread it kind of confirmed my beliefs that most crank breakage were due to just inferior parts or from other events that caused breakage. I believe that the forged Mopar rods are extremely strong and also are blamed...
  13. K.O. SWINGER

    Valve cover gasket material preference

    So I have traditionally run Cork gaskets with black permatex on my valve covers. I definitely prefer a cast aluminum or some more rigid style of valve cover opposed to light mild steel or tin style. My question is what do you feel the best valve cover gaskets are for a solid flat tappet cam...
  14. K.O. SWINGER

    Crank breakers wanted

    So tell your story, have you broke a crankshaft? Was it cast was it forged and why did it break. They say the factory cast units will handle the riggers of super stock racing? And you know that's some stress! I personally am not to interested in theories or hypothesis nothing but facts ma'am.
  15. K.O. SWINGER

    Any love for a 373 SB

    How do you feel about the old 373 build? Which is the old 340 block with a 360 stroke crankshaft. It's one of my favorites I just love the bore stroke ratio ,piston speed and other dynamics of the combo. It is falling out of Grace with the low cost 4 in strokers what's your opinion?
  16. K.O. SWINGER

    Fluid dampener pulley alignment question

    So classic mistake, I bought a new fluid dampener for my 340 in anticipation of my rebuild. But in a gross oversight my new balancer is approximately 1/2 in wider than stock. My question is I know some of you are running fluid dampeners what did you use for a crank pulley or how did you solve...
  17. K.O. SWINGER

    Pick a block

    I'm curious to see which block is favored and for what reasons. My question is if you had your druthers and could have a block delivered to your house for your next build which factory block would you choose? Assuming each block is a good rebuildable core would it be a la360 or LA roller...
  18. K.O. SWINGER

    Balancer specs

    Hello guys, I just purchased a fluid balancer for my 340 s i f approved it seems like a bit of a hog coming in it 12.5 lb my car is currently not here and I would like to know the weight of the factory forge crank 340 harmonic balancer?
  19. K.O. SWINGER

    Six pack to The summit

    I would like to start this thread for the six pack enthusiasts and gurus on this form. Six pack seem to be a bit of a hoodoo voodoo science. I have no interest in negative opinions of the setup only in helping those running them or that are interested in them understand and improve their...
  20. K.O. SWINGER

    Hydraulic to solid lifter camshaft

    So I'm a little confused, I was always under the assumption that moving to a solid lifter camshaft on a hydraulic la motor (340) required restricting oil flow via peening or bushing lifter bores. Am I wrong? lately I was told that no oiling modifications or changes need to be made. I know there...
  21. K.O. SWINGER

    Piston review

    These Pistons have made it to the shortlist for my 340 build. The motor will be sprayed on occasion, basically a 450 horse normally-aspirated 340. I mainly want to know of any experience that anyone has using this piston or if heard from a reliable source. Thank you
  22. K.O. SWINGER

    Head of the Class

    Lately there has been numerous posts on porting heads. It is amazing the amount of time and work and knowledge that some of our fellow members have on this subject. I would just like to say thank you for sharing all of your information with us. My question is and maybe it's been answered in...
  23. K.O. SWINGER

    son of a B.... now I need a new pan,what do you use.

    So a few days ago my pan and drivers side header met its demise. a valley gutter and a poorly graded man hole ring created the perfect storm and smashed in my milodon street strip pan and header.I have had that same pan on for over 15 years and never even drug it one time but stuff happens ,my...
  24. K.O. SWINGER

    combustion chamber question

    so lately I have been gleaning lots of info small block mopar strokers I am a die hard 340 guy and love that little over achiever, but times change and it time to go through mine one more time. my question is I now run close chamber aluminum heads so if I go with some dish or step piston on a 4...
  25. K.O. SWINGER

    Take a guess

    after twenty-five years of fine service, I am changing out my induction system from my M1 single plane and TQ to a six pack set up. After six months of collecting parts from Canada to the East coast and back to Oregon, I have accumulated all parts needed. I bought a T/A manifold from Rocket, a...
  26. K.O. SWINGER

    L A heads on a 1992 360 block?

    help me out guys, can I use procomp la heads on a 1992 360 roller /308 motor and if so what mods need to be done
  27. K.O. SWINGER

    who took my six pack?

    Hey every one I have been gone a long time ...new job,new home and some up grades to the swinger but good to be back! going to have some questions for you hardcore mopar lovers first off what the hell hapend to all the 340 six pack manifolds, I am going sixpack and purchased some nice carbs...
  28. K.O. SWINGER

    Pro comp heads

    So I would like to know Information on Pro comp heads L A style ...flow, quality so what do you KNOW . thank you.
  29. K.O. SWINGER

    rocker choice

    I am thinking of upgrading my rocker assembly . My cam is a circle track racing cam with 288 adv duration on both sides and 495 lift with 72 deg of overlap on 106 centerline . I will be running crane doubles and would like to know if a change to a longer rocker would be a good up grade ? Or a...
  30. K.O. SWINGER

    white rockers

    Hey Mopar kin, I haven't been around much I have Had a lot going on but I need some tec help my question may have been covered lately but here it is. I have been looking at White stainless steel roller rockers they seem like a great deal at 160.00 ...I run a hot hyd cam with 300 lbs at 500...
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