all pistons are after-market

by Wiseco, Sierra, or Aqua Power.

**In 1990 both 3.312 and 3.375 bore size blocks were made

check bore to insure proper piston.

Pistons are sold with rings, wrist pins and clips

all replacement wrist pins need new wrist pin Bearings (WP29-1),

except Wiseco 3064 series uses wrist pin Bearing  4036-29