vern6.0

I have a 408 engine with lunati rods crank n cp pistons. Upon assembly I noticed the crank flange was taller which I didn't know until I installed the rear cover. Who makes a flat sfi flexplate for tall crank flange for a 4l80e trans with a converter that has 3 bolts instead of 6

Che70velle

iTrader: (6)

You have a Lunati crank that has a longer flange than standard? I must say I’ve never seen an aftermarket crank with the long flange. If no one posts up to help, I’ll move this over to Automatic Tranny section.

vern6.0

Yes I do! I found that odd to begin with

Here you go

Che70velle

iTrader: (6)

That is not the long flange crank. That’s normal for 2000-present LS crank flange depth. Here’s a comparison picture of a a build I did recently…

Che70velle

iTrader: (6)

In contrast, here’s the odd 1999 era 6liter long crank….




The long flange sticks out about 1/2” past the seal. From what I can see in your picture, you’ve got the standard length flange.

SusieOrn

Deleted another bot posting…