New old stock 350 pistons for 4.060" bore. Use 3.48" stroke, and 5.7" con rods. These pistons were made by Zollner for SpeedPro and have a .100" dome. They use a common 1/16, 1/16, 3/16" ring package. Rings not included. They have pins and locks if you desire to float the small end. We used these in our pavement mod and turned them 6500 with no failures on race gas or alcohol. They are rugged and perfect for an entry level race engine of any kind.
Again, these pistons are for a sixty over 350 with 5.7" rods.
Any questions please text/call.
Thanx!
Gary