Locked Motor

[jjroszman]

You "upgraded" the topend and reused pistons? What did you upgrade? Letting off the gas or not would not cause piston shattering unless you decided to downshift for no reason. I had a friend that popped a nice chevy small block because he loved to downshift instead of using brakes. If you ran it lean, you might have stuck a piston but not made change of one.

Brandon

 

 

I'm not the know it all when it comes to motors and i'll be the first to admit it to be honest i have no idea what the first cause of a piston to shatter would be except for raping the hell out of the motor which i do alot of......I know enough to rebuild motors and ride thats about all......diagnosing problems isn't my specialty........the top end has been ported to beat hell running 38 carbs, a cool head, boost bottle, boysen power reeds, T5 exhaust......all i can think of is that the stock pistons couldn't handle it......like i said i have no idea why a piston would shatter.

[blowit]

I'm not the know it all when it comes to motors and i'll be the first to admit it to be honest i have no idea what the first cause of a piston to shatter would be except for raping the hell out of the motor which i do alot of......I know enough to rebuild motors and ride thats about all......diagnosing problems isn't my specialty........the top end has been ported to beat hell running 38 carbs, a cool head, boost bottle, boysen power reeds, T5 exhaust......all i can think of is that the stock pistons couldn't handle it......like i said i have no idea why a piston would shatter.

 

 

 

I would highly recommend a professional inspection before you repair it. Especially when porting is involved, it could have portly chamfered ports, irregular port shaping, wrist pin bearing failure, tapered bore, the list goes on. Bottom line, do not assemble it again without knowing. That 20 dollar inspection can save you hundereds down the road because pistons do not fail for no reason and the stocks will hold about anything but detonation and you are not running a 14mill stroker here. I would wager the pistons were worn out when they went back in but you need to know for sure.

 

 

Brandon