Mahle PowerPak Forged Piston and Ring Kit - 4.125 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Plus 4.00 cc - Small Block Chevy Skyjacker a straight female 1/8" NPT

a straight female 1/8" NPT to 3/16" inverted flare fitting

Also fits Pontiac Firebird

designed to fit the Mustang GT & Mustang GT500

and oil fill / PCV grommets (valve cover gaskets not included)

and drum/drum brake set-ups

Mahle PowerPak Forged Piston and Ring Kit - 4.125 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Plus 4.00 cc - Small Block Chevy Skyjacker a straight female 1/8" NPTEvery 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