To find the correct length drive belt for your 6-71 or 8-71 supercharger, do the following: Add the number of teeth on your top and bottom pulley. Look in the belt chart below in the column under the engine you are using and find the number that equals the total teeth on your pulleys, then read to the left for the proper belt part number.

Supercharger Belt Application Chart
Part No.	Pitch	Small-Block Chevy	Big-Block Chevy, Std. Deck	Big-Block Chevy, Tall Deck (1)	Chrysler 392 Hemi	Belt Length
925-7006	1/2"	64 to 70	-	-	-	54.0''
925-7007	1/2"	70 to 78	64 to 66	-	65 to 69	56.0''
925-7008	1/2"	74 to 78	64 to 70	-	69 to 73	57.0''
925-7013	1/2"	-	68 to 77	64 to 69	75 to 78	58.5''
925-7009	1/2"	-	75 to 78	-	-	60.0''
925-7100	8mm	108 to 124	105 to 116	-	-	56.7''
*XX to XX = Min to Max Pulley Tooth Count

Notes:
(1) The belts listed are for WEIAND supercharger kits installed on a Chevrolet Big-Block tall deck with either a Weiand #8204 or #8206 manifold spacer kit or Weiand's new manifold #7152 (satin) or #7152P (polished).
(2) 1/2'' pitch measurement is taken from center of one tooth to center of next.

Some parts are not legal for use in California or other states with similar laws / regulations

Top Categories

All Categories

Weiand Drive Belt 1/2" Pitch

Part Number: 925-7009

Weiand 7009 Details

Specifications:

Quick Links

Customer Care

Help

JEGS Online