Originally Posted by moparx
thanks for the clarification.
the vibration issues i have been involved personally with [360la, 400/440, all cast crank engines] got way worse the higher the rpm.
all were caused by torque converter balance issues and/or wrong flywheels being used.
thanks again for refreshing my memory on the way your problem acted. up
beer


I was pretty stoked when I fixed that problem because of the issue I've had with my 6 barrel Roadrunner for 35 years. I have done allot of stuff to that car trying to figure it out. Then low and behold I get another one. The 70 with the heavy rods needs balance as well and the motor has it's original damper with the weight. Getting the car out tomorrow to verify.

Thanks.. boogie

1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor
1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic
1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow
1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top
2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue
2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black
2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver