ProTru by Wiseco 23 Degree Flat Top Forged Piston and Ring Kit - 4.030 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Chevy PTS504A3 10290 This entry-level fire-retardant cotton suit

This entry-level fire-retardant cotton suit includes a wrap-around collar and three point epaulets with Simpson branding

harshness) with our poly bushings like competitors arms

Other models may have reversed power leads

1959-1959 Studebaker 4E7D

100% silicone inner and outer jacket provides heat protection up to 600°F

ProTru by Wiseco 23 Degree Flat Top Forged Piston and Ring Kit - 4.030 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Chevy PTS504A3 10290 This entry-level fire-retardant cotton suitChevrolet Small BlockWiseco 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 23 Degree Flat Top Forged 4. 030 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Minus 5.