ProTru by Wiseco 23 Degree Dome Piston Forged 4.040" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Plus 8.0 cc HSXLG11 The new aluminum structure features

The new aluminum structure features a unibody with no horn button for increase rigidity and durability

4 in Tall Cowl Scoop

1/8 NPT Gauge Port

3/8 in NPT Inlet

Great for dash mounted fuel shutoff

ProTru by Wiseco 23 Degree Dome Piston Forged 4.040" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Plus 8.0 cc HSXLG11 The new aluminum structure featuresChevrolet 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 Dome Forged 4. 040 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Plus 8. 00