340 vibrates
Here is the flex plate that I installed and no, I didn't have it when I had the engine balanced. Plugs and wires are new but I haven't checked the coil. It is a Unilite distributor and Mallory coil. The ignition system and balancer are the only things that were on the old engine that haven't been checked or rebuilt. When I did swap the old external balanced converter it did improve it drastically but not 100%. I did confirm that the converter new converter is a neutral balance. Again, it is the same as before the rebuild for the most part, but was hoping it would have been cured. When driving it is a rhythmic, oscillating kind of feeling, like a drive line or tire balance that comes and goes just like if I am holding the rpm in part and neutral. Seems to start only above 2k rpm.
B&M Flexplate
Flexplate, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, 6-Bolt, Mopar, 727, V8, Each
B&M flexplates are ideal for 6,000+ rpm usage. They have precision-stamped centers and a rust-resistant, gold iridited finish. Some units are SFI-approved and are NHRA/IHRA-legal for all classes.
Here is the flex plate that I installed and no, I didn't have it when I had the engine balanced. Plugs and wires are new but I haven't checked the coil. It is a Unilite distributor and Mallory coil. The ignition system and balancer are the only things that were on the old engine that haven't been checked or rebuilt. When I did swap the old external balanced converter it did improve it drastically but not 100%. I did confirm that the converter new converter is a neutral balance. Again, it is the same as before the rebuild for the most part, but was hoping it would have been cured. When driving it is a rhythmic, oscillating kind of feeling, like a drive line or tire balance that comes and goes just like if I am holding the rpm in part and neutral. Seems to start only above 2k rpm.
B&M Flexplate
Flexplate, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, 6-Bolt, Mopar, 727, V8, Each
B&M flexplates are ideal for 6,000+ rpm usage. They have precision-stamped centers and a rust-resistant, gold iridited finish. Some units are SFI-approved and are NHRA/IHRA-legal for all classes.