ProTru by Wiseco Windsor Flat Top Forged Piston and Ring Kit - 4.030 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 7.00 cc - Small Block Ford PTS500A3 Throw-Out Bearing and circle track applications

and circle track applications

The unique Beehive shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability

For use with Weathertight and Seals

GM 6-Cylinder / MSD Pro-Billet

ProTru by Wiseco Windsor Flat Top Forged Piston and Ring Kit - 4.030 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 7.00 cc - Small Block Ford PTS500A3 Throw-Out Bearing and circle track applicationsFord Small Block WindsorWiseco Pro Tru is a division of Wiseco specializing pistons and piston rings for price conscious engine builders. They offer complete kits to fit a wide range of engines. Manufactured by Wiseco Performance Products, ProTru Forged Pistons are affordable with features usually found only in more expensive pistons. Product Description: Piston and Ring Windsor Flat Top Forged 4. 030 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Minus