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Competition Distributing Inc.
Valve, Valve Guide, Exhaust Lifters and Lifter Pin Dimensions

Our valves are 1 piece, forged stainless steel. Made in the USA.

   
Intake Valves   Exhaust Valves    
Part# Years Motor Stem Diameter Head Diameter Length   Part# Years Motor Stem Diameter Head Diameter Length    
116-10 1909-1912 Singles 0.280" 1.685" 2.20"   180-11 1910-1914 Single, Twin 0.321" 1.750" 6.0"    
116-12 1912 Singles, Twins 0.283" 1.7" 2.68"   180-15 1915-1926 61" 0.321" 1.750" 5.5"    
116-15 1915-1916 61" Twins 0.275" 1.81" 3.19"   181-10 1910-1915 Headstrom 0.340" 1.6225" 4.87"    
116-17 1917-1927 61" Twins 0.285" 1.83" 3.11"   181-21 1921-1927 *Twins 0.321" 1.942" 5.63"    
117-23 1923-1929 74" Twins 0.285" 1.998" 3.37"   181-23(OS) 1921-1927 *Twins 0.321" 2.063" 5.61"    
                             
                             
                             
Intake Valve Guides   Exhaust Valve Guides    
Part# Years Motor Inside Diameter Outside Diameter Style   Part# Years Motor Inside Diameter Outside Diameter Style    
95-17STD 1917-1924 61", FD, JD   .278" 9/16" Thread In   184-21 1921-1924 74" Twins .328" 11/16"  Thread In    
95-17OS 1917-1924 61", FD, JD .284" 9/16" Thread In   184-25 1925-1929 Twins .318" .440" Press In (bronze sleeve)
95-24STD 1924-1929 61", 74" Twins .278" .4675" Press In                  
95-24OS 1924-1929 61", 74" Twins .284" .4675" Press In                  
                             
Exhaust Lifter Pins     Exhaust Lifter Pins Bushings  
Part# Years Motor Length Outside Diameter     Part# Years Motor Inside Diameter Length      
218-15STD 1915-1929 61" Twins 2.395" .380"     226-14 1914-1920 74" Twins .375" 1.725"      
218-15OS 1915-1929 61" Twins 2.395" .410"     226-21 1921-1929 74" Twins .410" 1.835"      
219-21OS 1921-1929 74" Twins 2.643" .413"                    
                             
   
         
                             
                             
                             
                             
                             
                             
                             
                             
                             
         
                             
                             
                         
                             
                             

 

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