Has anyone used a 385 dampener on a FE?

I'm considering doing this. I've never been into 460 so, I not familiar with the difference between the dampeners. It looks like it could be done though.

Hello all

... Though I will sonic test the bores I was wondering if this block had thicker cylinder walls than the normal 390 block.  My thought is that these blocks were being cast for a 427 bore but did not have enough wall thickness to pass inspection.  I am probably wrong but I would like to know what you experts have to say.

I am an expert reader, and long ago learned that FE's being "thin wall" castings, means that core shift is a major consideration when sonic checking cylinder walls.

Also, FE's are subject to cylinder wall flex and the concomitant reduced horsepower effect. Never ever never bore an FE any more than necessary -- a stroker crankshaft is the best means of increased displacement.

     The additional webbing and the cross-bolt bosses were also seemingly commonly found in the '64 Mercury 410 blocks.   

     Scott.

That would be very rare as the 410 Merc FE was 66-67 only

     The additional webbing and the cross-bolt bosses were also seemingly commonly found in the '64 Mercury 410 blocks.   

     Scott.

i have a police interceptor block like that. No thicker cyl walls than a ordinary 390 block