QUICKCHANGE GEARSET 1 3/8",10 SPLINE,#10, 17T/23T Push Button Type Splined USE WITH #570-250 LOCK COLLAR

USE WITH #570-250 LOCK COLLAR

FOR PULLEYS WITH A 3/4" HOLE

THE SOUTHWEST SPEED ENGINE MOUNTING BRACKETS MOUNT THE SMALL BLOCK CHEVY ENGINE IN THE CORRECT LOCATION IN 1955-1957 CHEVYS

*-10 AN ALUMINUM INLET FITTING

QUICKCHANGE GEARSET 1 3/8",10 SPLINE,#10, 17T/23T Push Button Type Splined USE WITH #570-250 LOCK COLLARTOOTH COUNT: 17 23 PREMIUM QUALITY WINTERS QUICKCHANGE GEARS 10 SPLINE PRECISION MATCHED SETS TO FIGURE EXACT GEAR RATIO, 1ST GET THE SPUR RATIO *SPUR RATIO=TEETH ON TOP GEAR DIVIDED BY TEETH ON BOTTOM GEAR THEN FIGURE THE GEAR RATIO *GEAR RATIO=SPUR RATIO X R&P RATIO CLICK ON THE CHART AT THE RIGHT TO SEE THE RATIOS ON EACH GEAR SET INCLUDING THIS ONE