Hello,








I couple of years ago I bought a 350SBC short block. I added flexplate, damper, front acc, heads, etc. I'm using the same transmission and converter. The car had a 305 originally. So, I put all together and I fell a vibration at >2k-3k RPMs. Not sure it is caused by flexplate, damper, convertor, transmission, or engine/transmission mounts (poly). I know, really I know, there is a lot of discussion here on internally vs externally balanced engines. It's very confusing because there is no straight answer. So, can somebody give the part number for a damper and flexplate that would fit this engine? I'll be buying a new 700R4 from Bowtie and replacing mounts with rubber ones. Thanks

 

The original engine had a one-piece rear main seal. What kind of rear main seal does the replacement engine have?

 

Paulo,

Thanks for the reply.

To be honest, I have no idea. Is there any way to check without removing the transmission? I've been looking for the purchase docs but can't find them.

 

You can remove the inspection cover under the torque converter and take a look.