Mahle PowerPak Forged Piston and Ring Kit - 4.060 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy 930200660 19399904 They are anodized and constructed

They are anodized and constructed of 6061-T6 Aluminum

11" Compressed / 20

Tuff Stuff PS Pump / Powermaster Alternator / ARP Hardware / Sanden AC Compressor

With Square Bore Flange

Mahle PowerPak Forged Piston and Ring Kit - 4.060 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy 930200660 19399904 They are anodized and constructedEvery Mahle piston is backed by 90 plus years of racing heritage and technology. From the invention of the first aluminum piston to the most advanced design and machining processes being used today, MAHLE delivers unmatched performance and durability. MAHLE's light weight, low drag, design specific forgings are machined with close attention given to ring groove quality, tolerances and consistency. All Mahle pistons are dual or triple coated, adding