Our favorite cams for the 3S! We recommend the Gen2 S1 cams for most builds, even for Gen3/4/5 heads. The larger options should not be used with stock Gen2 shim-over buckets.

We worked directly with GSC to ensure the proper fitment for Gen4/5 cam triggers.

Don't forget to pick up a set of ATS Adjustable Cam Gears!

Gen 2 S1

Intake - 268 Duration 9.7mm Peak Lift
Exhaust - 268 Duration 9.7mm Peak Lift

Gen 2 S2

Intake - 274 Duration 9.9mm Peak Lift
Exhaust - 274 Duration 9.9mm Peak Lift

Gen 3 S1

Intake - 268 Duration 10.5mm Peak Lift
Exhaust - 268 Duration 10.2mm Peak Lift

Gen 3 S2

Intake - 274 Duration 11.0mm Peak Lift
Exhaust - 274 Duration 10.8mm Peak Lift

Gen 3 S3

Intake - 280 Duration 11.75mm Peak Lift
Exhaust - 280 Duration 11.75mm Peak Lift