Had a Whippled 502 that did the big bang thing on accelerating from an idle.

that falls under chit happens option.i don't see my option either,,,,,,,,ray Charles and stevey wonder assembled my motors.lol

Depends on if you call dropping a valve blow? But I was at idle

Vacuum leak by #4 intake caused it to go lean and melt #4 piston. Limped home the last mile on the port engine. You know, the one WITHOUT the power steering!

Wide open, blew both head gaskets. Note to self- if engine ever gets too hot, pull head and inspect no matter what.

Before I even put it in the boat how's that

I really feel for you SS . I'd like to go down and give Randy a kick in the ass for you.

5600 rpm for 5 miles then BOOM!! Oil pain failed to hold rod in pan! Oil all over!

Came off of a large boat wake motor quit, water came up side exhaust

Testing props.. Change the props in the water!! ;) I backed my boat and trailer in the water and cold water got up in the exhaust and quenched a valve seat.Then it fell into the combustion chamber. So I guess that is when it blew. But I did not notice it until my boat was only runnin 90 @ WOT ( I looked and one motor was down 600 RPMS)