Whats the difference in bushed and press fit rods?
#1
Melting Slicks
Thread Starter
Whats the difference in bushed and press fit rods?
What is the difference between bushed and press fit rods. I know the bushed rods are for full floating pistons, but what that is I don't know. Can someone explain, and tell me which is generally thought of to be better.
#2
Le Mans Master
Bushed rods have a bushing in the end where the piston pin goes, the piston pin is then held in the piston by snap rings. This means there is movement both on the rod and the piston. This application is usually for all-out high rpm use. The press fit means the pin is pressed onto the rod and does not move once it's positioned, it still moves in the piston though. This is the most common practice for manufacturers although some do build their engines with full floating pistons. Full floating just means the piston pin can move in the rod as well as in the piston.