Considering 2014 Hemi (5.7) 1971 Demon

That sloppy vvt timing set always scared us too. Thats why on our eagle crate we use a shorter proprietary performance timing set, with a custom spring tensioner.
Also correct me fully if im wrong, as we dont mess with the pre eagles, but isn't there a spacer involved with new heads on the old block? Intake spacing differs if I remember correct.

A thicker head gasket is sometimes used to lower the compression ratio to a more acceptable level. The Eagle heads have bigger intake ports so the early intake manifolds won't fit without modification.

I wasn't aware that any aftermarket timing sets were available for the Eagle motors. Glad to hear that the aftermarket is catching up.

Regards,

Joe Dokes