Will performance forged pistons from a Gen. 4 V6 fit in my Gen. 3 V6 automatic. I am planning on boring out my engine and was going to completely rebuild it. Any advice will be extremely appreciated. thanks
If the engine code is the same then I am almost sure that YES you can. On the 5sfe for instance internals are the same. Have a look at this website : http://www.importperformanceparts.net and see if it does fit with their parts according to their part numbers (click on "Toyota", "pistons" and have a look with each manufacturer).