Porsche 356 912 91mm Nickies Cylinders Machine-in 102-91 911-731-251-00 and C4 models (1997-2005)

and C4 models (1997-2005)

and that replaces the the glass and glass seal

Years 1957-1965

Porsche Sleeve for fuel tank filler neck on 911 (1965-1989)

Fits 924 (1944-1982

Porsche 356 912 91mm Nickies Cylinders Machine-in 102-91 911-731-251-00 and C4 models (1997-2005)LN Engineerings Nickies The original and genuine solid aluminum CNC billet NSC plated cylinders provide increased strength and cooling, allowing for increased displacement and performance without compromising reliability. Machine in cylinders for Porsche 356 and 912 engines require both the cylinder head and engine case registers to be machined for the larger cylinder spigot diameters. Most Nickies kits are in stock and available in countless piston