JE Pistons Premium Race Series Piston Rings - 4.320" Bore File Fit 1/16 x 1/16 x 3/16" Thick - Standard Tension 600090153 This model of carburetor has

This model of carburetor has the square bore flange bolt pattern

small head header bolts

Pro-Lite 390

Front and Rear

JE Pistons Premium Race Series Piston Rings - 4.320" Bore File Fit 1/16 x 1/16 x 3/16" Thick - Standard Tension 600090153 This model of carburetor hasProduct Description: Piston Rings Premium Race Series 4. 320 in Bore File Fit 1 16 x 1 16 x 3 16 in Thick Standard Tension Ductile Iron Plasma Moly 8 Cylinder JE Pistons is the leader in high performance forged pistons. JE Pistons has built a reputation that the competition can only follow. JE Pistons has a history of manufacturing the highest quality pistons and components that professional engine builders, race teams, and high performance