Keep bending rods and breaking rockers everytime u take my boat out . Has anyone ever had this issue before ?

1977 liberty
454 BBC
Berkeley pump

I recently got a new motor runs good for a trip then starts knocking keep bending the 3/8 rods  replacing them and same thing rod number 7 is the main issue

Valvepiston clearance

Sounds like either coil binding or rocker slot binding on the stud at full lift, would be the two most common culprits that are easy to check... and doesn't involve pistons crashing into valves (other damage other than just bending pushrods and breaking rockers).


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