Mahle PowerPak Forged Flat Top Piston and Ring Set - 4.160 in Bore - 1.000 in Compression Height - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 6.00 cc - Small Block Chevy AFR2521 7/16-20 in Thread x 7/8

7/16-20 in Thread x 7/8 in Long

150 in Long

Two grip shapes are offered: O and OE

498 in - Duration 283/303 - 107 LSA - 1700-5500 RPM - Pontiac V8 51-600-11

Mahle PowerPak Forged Flat Top Piston and Ring Set - 4.160 in Bore - 1.000 in Compression Height - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 6.00 cc - Small Block Chevy AFR2521 7/16-20 in Thread x 7/8Product Description: Piston and Ring PowerPak Forged Flat Top 4. 160 in Bore 1. 000 in Compression Height 1. 0 x 1. 0 x 2. 0 mm Ring Grooves Minus 6. 00 cc Small Block Chevy For over 80 years, MAHLE has numbered among the leading international manufacturers of high quality components for the automotive engine industry. From powering the Champions in the world's premier racing series to delivering winning performance at local dirt tracks around the