It’s no secret that we’re big fans of the Gen. 3 Hemi engine around here—specifically the Eagle and Apache series. So when someone tells us that there’s a nice lineup of camshafts for the 2009+ 5.7L, 6.1L, and 6.4L Mopar Gen. III Hemi, we want to hear more.

And that’s precisely what the Summit Racing folks have up their sleeves.

Its Pro Hemi Camshafts are precision ground in the USA from high-quality bearing steel billet cores and finished on modern Landis CNC grinders. Better yet, Summit Racing offers an impressive mix of styles and profiles to suit pretty much every need from the Gen. 3 Hemi community—from removing MDS on stock engines to building big power on high-RPM racing engines.

Here’s a good look at the current lineup of Summit Racing™ Pro Hemi Camshafts:

***

Summit Racing Pro Hemi Non-MDS Camshafts

The stock multiple displacement system on certain Gen. 3 Hemi engines can be, in a word, problematic—we’ve heard stories of repeated lifter failures, misfire codes, and valvetrain noise from failing MDS components.

But a Summit Racing Pro Hemi Non-MDS Camshaft goes a lot way towards remedying that. They are available individually or in Summit Racing Gen III Hemi MDS Delete Kits that include lifters, gaskets, and all the other components you’ll need to completely remove MDS from your vehicle’s engine. 

You can get all the details on an MDS delete in this story on OnAllCylinders, or you can learn more in this quick video:

***

Summit Racing Pro Hemi Truck Camshafts

Available for 5.7L and 6.4L engines, the Pro Hemi Truck Camshafts are for folks who want to hot rod their daily driver truck or SUV.

  • Stage One cams work well with trucks that tow often.
  • Stage Two cams makes great midrange, good top end, and have a steady lope.
  • Stage Three cams deliver strong midrange and top-end power.

All Pro Hemi Truck cams work with the factory torque converters. 

***

Summit Racing Pro Hemi Automotive Camshafts

Wake up your Charger or Challenger with a Summit Racing Pro Hemi Automotive Camshaft. The cams are available in durations ranging from 206 to 232 degrees at 0.050 inch, and with 0.585 to 0.625 inch of valve lift. They deliver maximum naturally aspirated power—but also work well with superchargers and nitrous.

***

Summit Racing™ Pro Hemi Supercharged Camshafts

Summit Racing Pro Hemi Supercharged Camshafts have ramp profiles that are fine-tuned to deliver maximum power in 6.2L Hellcat supercharged engines.

Stage One and Two cams have a noticeable lope and deliver great power through the entire RPM range. The Stage Three cam delivers a strong, steady lope and gobs of power through the midrange and top end.

***

Summit Racing Pro Hemi Turbo Camshafts

Summit Racing Pro Hemi Turbo Camshafts are specially tuned to enhance the flow of exhaust gases for quicker turbo spool-up. The cams are available in durations ranging from 218 to 232 degrees at 0.050 inch and up to 0.625 inches of valve lift.

***

Summit Racing Pro Hemi Big Gun Camshafts

Thanks to their highly aggressive profiles, Summit Racing Pro Hemi Big Gun Camshafts make maximum power at high RPM. These race cams pack between 232 to 251 degrees duration at 0.050 inch and up to 0.625 inches of valve lift to deliver oodles of power over 8,000 RPM. They also provide excellent valvetrain stability with performance valve springs and OEM rockers and shaft supports.

Note: You’ll need to step up to aftermarket forged pistons with valve reliefs when using Summit Racing Pro Hemi Big Gun Camshafts. 

Summit Racing Pro Hemi Camshaft
(Image/Summit Racing)