Blown freeze plug

brian6pac said
I had a 383 back in the day and had it wound up around 6500 rpm and it popped the plug out of the back of the right head, head gasket leaked and pressurized the cooling system.

Thanks!

brian6pac said
I had a 383 back in the day and had it wound up around 6500 rpm and it popped the plug out of the back of the right head, head gasket leaked and pressurized the cooling system.

Thanks!

teringer said
check lower hose for sucking shut might be missing spring.