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Mandrel Bolt, Grade 8, 7/16-20 x 5 Inch

SAME DAY SHIPPING! Order within the next 6 hours 21 minutes and receive same day shipping

Mandrel Bolt, Grade 8, 7/16-20 x 5 Inch

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Grade 8 mandrel bolt (7/16"-20 thread) fits small block Chevy V8 and our mandrels.

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For 220-38121

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Mandrel Bolt, Grade 8, 7/16-20 x 6 Inch
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                        Grade 8 mandrel bolt (7/16"-20 thread) fits small block Chevy V8 and our mandrels.

Item Details

for 220-38120
Mandrel Bolt, Grade 8, 7/16-20 x 8 Inch
(Part #91315915)
                        Grade 8 mandrel bolt (7/16"-20 thread) fits small block Chevy V8 and our mandrels.

Item Details

For 220-38122
Peterson Fluid Systems 05-0706 2.4 In Aluminum Drive Mandrel-S/B Chevy
(Part #22038121)
                        These aluminum drive mandrels for small block Chevys work with our belt drive systems and are available in various lengths. Length is measured as the working length where the pulleys and spacers are positive.
                    
Small Block Chevy Short Water Pump Gilmer Drive Kit
(Part #91315921)
                        
  • Both upper and lower pulleys included
  • Upper 28 tooth pulley, 16 tooth lower pulley and 22-1/2" Gilmer belt
  • 43% reduction to eliminate overheating and belt slippage
  • Adjustable water pump 910-15582 is recommended for use with this kit

Note: This  kit will work with most "short" water pumps, but hub heights do vary slightly depending on manufacturer. Some modification of the mounting holes may be required. This kit WILL NOT work with "long" water pumps as the crankshaft to hub center height is 5/16" greater than that of a "short" pump.

Get the correct pulleys for your application by learning which water pump you have as explained in our tech article. SBC - Short vs Long Water Pump.  

Speedway Tandem Dual Pump Gilmer Drive Kit
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                        Kit comes with a 32 tooth upper pulley, 16 tooth lower pulley, and a 32" Gilmer drive belt.