90-17VG HARLEY JD FD INTAKE HOUSING WITH VALVE GUIDE 1917-1929 61" & 1921-1924 FD JD Fork 1912-1929 61" 74" SINGLE &

1912-1929 61" 74" SINGLE & TWIN

5/16" - 24 TPI

These are a little higher compression than the factory pistons

This is a 2 Window Pocket

Singles and Twins

90-17VG HARLEY JD FD INTAKE HOUSING WITH VALVE GUIDE 1917-1929 61" & 1921-1924 FD JD Fork 1912-1929 61" 74" SINGLE &90 17 Intake Housing for Unleaded Gas WITH GUIDE (Front or Rear Inlet Housing Valve Pocket) Sold Each. Fits 1917 to 1929 61" Motors. Fits 1921 to 1924 FD & JD Motors. 2. 245" OD 1. 02" Overall Height Can be used for front or rear cylinder. Locating pin (for rocker tower) is installed. Made from Durabar. Valve Guide is installed and Reamed to fit our valve stems. Seat has been cut following the valve guide. Sold Each. Made in the USA with USA Steel.