Mahle PowerPak Forged Piston and Ring Kit - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy 930200030 200410105 With a 3/8" base thread

With a 3/8" base thread and a 7/16" rocker thread

They are made of cast iron and install into the exhaust crossover without any modifications

meaning that doing maintenance on your low clearance vehicle won't be the usual chore (no more heavy blocks of wood

Ahead in Neck Protection

1992-1995 Mercury Grand Marquis

Mahle PowerPak Forged Piston and Ring Kit - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy 930200030 200410105 With a 3/8" base threadEvery 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