Replacing a 4.6, cost?

I think you can get a shortblock for $1999 and heads are $399 a piece with cams.

so for brand new you are looking at ~3k most likely. they used to just sell the engines on fordracings website for like $2600 or $2800 I think but there are not there anymore.

karkraft has longblocks for about $2300 or so. they have production shorblocks for $1400-$1600.