I've read conflicting reports on this but do you have to notch the cylinders with 6.4 heads on a 5.7 or will the valves clear? I thought I saw a build on here where a 6.4 head will clear a 5.7 bore (close but it does) but several "experts" on sone Gen 3 groups on FB howl that they don't. Oh and if the heads are coming off may as well put headers on as well (it's very easy to spend your money lol)
side track,
my experience with 6.4 heads on 5.7 blocks....stock 3.917 bore.....too close needs to be notched if the factory bores are just slightly off you can have an issue, , 3.937 bore they'll clear ..but best results notch it, don't need much.
