Click on the left side and the specifications will appear in this window

Click on the left side and the specifications will appear in this window.

Standard Model T's had 22.50 horsepower.
May modifications may be made to increase this.

Firing Order 1-2-4-3
Gap - 1/32"
Types - Original show quality 2 piece (Champion X brass top)
            Replacement Champion 25
                Autolite - modern top
                Motorcraft - modern top

Valves

Diameter of head and upper edge of seat - 1 15/32"
Diameter of lower edge - 1 17/64 - 1 9/32"
Width of valve seat - 3/32"
Angle of valve seat - 45 degrees
Thickness of head - 3/16"
Stem diameter - .3105 - .312"
Overall length - 4.974
Retainer pin hole - .110 - .113" (4-19/32" from valve seat line
Valve lift - 7/32"
Valve tappet to stem clearance - .022 - .032"
Valve ports - 1 5/16"
Valve stem guide holes - .3125"