external or internal flexplate - Lateral-g Forums

smokey1010 · #1 11-17-2009, 07:19 PM

I have a mark iv 454 engine. I don't know if I need a internal or external flexplate. The block# 14015445. Any help will be good. Thanks dave

Vegas69 · #2 11-17-2009, 07:24 PM

Normally external, unless it was purposely built for an internal balance.

deuce_454 · #3 11-19-2009, 11:02 PM

Quote:

Originally Posted by Vegas69

Normally external, unless it was purposely built for an internal balance.

what he said...but you can tell by looking at the crank if it has a counterweight on the flywheel end or not (and the old flywheel/flexplate will give it away too)