Yeah, I have a 360. Its all good. Thanks to this thread, I’m 99 percent sure I have the correct balancer now. It may need replaced perhaps due to slippage. At idle, I have a very small engine shake. But, I also had extremely loose engine mount bolts that I tightened up a couple weeks ago. Tightening the bolts removed 75 percent of the shake at idle. I’m now leaning toward the torque converter out of balance a tad. If the 318’s are in fact internally balanced and the 318 didn’t use a balanced torque converter. That’s my problem. Because someone previous to me swapped 360 into a 318 car. It’s the originally tranny and appears to be original torque converter. Based on looking through the bell housing. The shake is very small at idle. If you observe the rear of the body you can see the back end shake a tad. I’ve talked to several people concerning a larger cam creating a small shake. And most people agree that a larger cam will create a minimal engine shake at idle. Regardless, how well you tune the carb, timing, etc. I just wanted to evaluate the balancer.
