3-5/16" PISTON SET for 74" 1937 - 1948 UL Motors

Cast Alloy PISTONS with Expansion Strut
for all 74" 1937 - 1948 UL motors
Set includes PISTON PINS, KEEPERS and RINGS
Ring thickness size is 3/16" Oil & 3/32" Compression
Factory books say Standard UL bore size is 3.3125" diameter (3-5/16")
(RINGS & PIN style may vary in design from photo)
PISTONS available in following sizes:
Standard
+ .010" oversize
+ .020" oversize
+ .030" oversize
+ .040" oversize
+ .050" oversize
+ .060" oversize
+ .070" oversize OUT OF STOCK
+ .080" oversize
+ .090" oversize
+ .100" oversize