Cracks in LA and Magnum heads....Have you tried running them anyway?

[RustyRatRod]

The Roadkill guys SWEAR by that”K-Seal” stuff.

That's for stopping coolant leaks. It won't work for cracks in the valve seats.

 

[junkyardhero]

The Roadkill guys SWEAR by that”K-Seal” stuff.

i can attest to that, K seal works.

 

[MOPAROFFICIAL]

I sold a set of X heads to a guy who had them magnafluxed. They found a couple of cracks near the spark plug holes. I gave him back his $$ and told him to pitch them....Not sure if he did, or used them anyway.

A lot of them are cracked at the spark plug hole. It about never spreads much more and you can can try grinding the boss down. I'd have used them.