502 940 hrs. Blown piston ?

[Mainship39]

Members , I had a nock in my starboard 502 then about 2200 RPM that day , the ,motor stopped. When we disassembled it # 1. Cyl. Blew the rist pin and the rod put a 1/8 x 3/8 pit in the cyl. I have to ideas ,
sleve it (questionable ) or because of $$$ ,I can get a remanufactured 454 short block so I can use my
own heads and all the Crusader parts and but up to the trans LH rotation. The thing is I will be 40 hp short . My boat is a 39 Mainship Ex. PS both Engines have 940 hrs. Fresh water and not run hard,not sure
how this happened ,three quarts antifreeze in the pan.

 

[fastjeff]

Go with the rebuilt!

Jeff

 

[Docksidemarineservices]

Better find out why this happened or you will be doing it again.

 

[hottoddie]

Better find out why this happened or you will be doing it again.

Faulty carburetion or fuel injection causing too lean a fuel mixture. Or faulty ignition timing causing detonation. Also overpropping or fouled bottom overloading the engine. Always make sure your engines can reach recommended wot rpm to prevent overloading.