Porsche WR Big Valve Kit 42/36 - 356 - 912 | 1955-1969 WR-423-600-00 93011115401 CLS550 (2013-2017)

CLS550 (2013-2017)

This precision-engineered brake line connects your caliper to the master cylinder

If product has been stored at 32°F or below

this component ensures reliable cooling performance and a seamless factory appearance

for Cayenne GTS (2013-2014)

Porsche WR Big Valve Kit 42/36 - 356 - 912 | 1955-1969 WR-423-600-00 93011115401 CLS550 (2013-2017)Porsche WR Big Valve Kit 42 36 for 356 (1955 1965) and 912 (1966 1969). The newest WR Ultimate Performance 42 36 Big Valve Kit is engineered specifically for OEM 356 and 912 cylinder heads, delivering everything needed to convert stock heads for use with our 91mm piston and cylinder set. Its also an excellent choice for preparing stock bore heads for high rpm street or race applications. At the heart of the kit are custom 8mm stem intake and exhaust