Read this before you swap...

Update: Buddies 300C hemi motor is toast. OTHER head lost an exhaust seat, valve hung open, piston hit it (big crescent on piston crown) and broke head off. Destroyed the cylinder. $9300 dealer motor replacement or aftermarket rebuild $3500....Day after its fixed its getting sold. That is some tough luck, eh? I told him bring 3rd party waffling warranty company (not covered.."any scenario you tell me, I can defend" said the warranty agent, the moxy!!!) to small claims court big time, this is ridiculous....He's so pissed he'd jumping the new hemi ship and getting his 67 Mustang back on the road with EFI...Bummer.