Below is a chart for the different belts based on your application. Due to the number of different applications, please be sure you select the right belt.
ScienceofSpeed Supercharger System
pulley
belt
brand
5.0"
4060423
Continental
4.8"
4060420
Continental
4.6"
4060420
Continental
4.4"
4060415
Continental
4.2"
4060410
Continental
4.0"
4060407
Continental
3.8"
5060405
Dayco
3.6"
4060400
Continental
3.4"
4060400
Continental
3.4" (w/ idler)
4060400
Continental
3.2"
4060395
Continental
3.2" (w/ idler)
4060395
Continental
3.0"
5060390
Dayco
3.0" (w/ idler)
K060393
Gates
Comptech Generation 1 Supercharger - with Novi 1000 Supercharger
pulley
belt
brand
4.0”
5060390
Dayco
3.8”
5060390
Dayco
3.6”
5060380
Dayco
3.4”
5060380
Dayco
3.2”
4060374
Continental
3.0”
4060370
Continental
Comptech Generation 1 Supercharger - with ScienceofSpeed Novi 1220/1200 Conversion Kit (No longer sold)
