ProTru by Wiseco 23 Degree Flat Top Forged Piston and Ring Kit - 4.155 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Chevy PTS507A3 R03P015S - Seat Pressure 265 @

- Seat Pressure 265 @ 2

King XP rod/main bearings

Weiand has raised the bar on intake manifold design through the use of industry leading Computational Fluid Dynamics software

Comfortable and loaded with features

Product Description: Multi-Mount For Yamaha YXZ - RM60

ProTru by Wiseco 23 Degree Flat Top Forged Piston and Ring Kit - 4.155 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Chevy PTS507A3 R03P015S - Seat Pressure 265 @Chevrolet Small Block 400Wiseco 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. 155 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves