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Belt Length Chart

1999-2004 FORD LIGHTNING SUPERCHARGER BELT LENGTHS


Click Here to Buy a Lightning Belt

 
    SUPERCHARGER PULLEY SIZE
         
    2.93 (STOCK) 2.80 2.70
  STOCK (7.40") 66" 66" 65"
CRANK 2# (8.25") 66.5" 66.5" 66"
PULLEY 4# (8.75") 67.5" 67.5" 67"
SIZE 6# (9.25") 68.5" 68.5" 68"
  8# (9.75") 69.5" 69.5" 69"
  10# (10.25")  70.5" 70.5" 70"
         
Belt Size Variations:        
       Add .5" with a LFP Auxiliary Idler .
       Add .5" when changing from a 90MM Idler to a 100MM Idler .
         
Pulley diameters are all measured from the outer lip.

 


2003-2004 MUSTANG COBRA BELT LENGTH      
  Click Here to buy a Cobra Belt           
    SUPERCHARGER PULLEY SIZE    
             
    3.60 (STOCK) 3.00 2.90 2.80 2.70
  STOCK (7.375") 75.5" 74.50" 74" 73.50" 73.50"
CRANK 2# (8.25") 77" 76.50" 76" 75.50" 75.50"
PULLEY 4# (8.75") 78" 77.50" 77" 76.50" 76.50"
SIZE 6# (9.25") 79" 78.50" 78" 77.50" 77.50"
  8# (9.75") 80" 79.50" 79" 78.50" 78.50"
  10# (10.25")  81.50" 81" 80" 79.50" 78.50"
             
Belt Length Variations:            
       Add 1" with a LFP Auxiliary Idler .  
       Add 1" with a 3.20" Alternator Pulley .  
       Add 1.5" with a 3.50" Alternator Pulley .  
       Add 2.0" with a 3.70" Alternator Pulley .  
       Add .5" when changing from a 90MM Idler to a 100MM Idler .  
             
Pulley diameters are all measured from the outer lip.