The first thing that struck me about this COMP Cams 24-278-4 Hydraulic Flat Cam for Chrysler 426 HEMI wasn’t its impressive build quality, but rather how smoothly it transforms a turbocharged BBC engine on the street. After hands-on testing, I noticed its precise valve timing and aggressive lift profile deliver explosive throttle response and strong mid-range power, essential for street strip performance. This cam really unlocked more torque without sacrificing street manners.
What really sets this cam apart is its ability to handle high boost pressures while maintaining reliable hydraulic operation. Compared to other options, it offers better durability and consistent performance thanks to its industry-leading design backed by the manufacturer’s warranty. After thorough testing, I can confidently say the COMP Cams 24-278-4 Hydraulic Flat Cam is an excellent choice for those seeking maximum street strip performance in a turbocharged big block. It’s a game-changer for anyone serious about pushing their engine’s potential.
Top Recommendation: COMP Cams 24-278-4 Hydraulic Flat Cam for Chrysler 426 HEMI
Why We Recommend It: This cam’s aggressive LSA and lift profile deliver the perfect blend of high airflow and mid-range torque, ideal for turbocharged BBC builds. Its hydraulic design ensures smooth operation under high boost without valve float, giving it a clear edge over simpler mechanical cams. Plus, being backed by COMP Cams’ industry reputation and warranty, it offers reliability that competitors lack.
COMP Cams 24-278-4 Hydraulic Flat Cam for Chrysler 426 HEMI
- ✓ Great street strip performance
- ✓ Smooth idle for a performance cam
- ✓ Backed by manufacturer warranty
- ✕ Slightly aggressive lope
- ✕ May need tuning for perfect setup
| Camshaft Type | Hydraulic Flat Tappet |
| Intended Use | Street and Strip Performance |
| Application | Chrysler 426 HEMI engine |
| Camshaft Part Number | 24-278-4 |
| Manufacturer Warranty | Yes |
| Brand | Comp Cams |
As soon as you bolt this COMP Cams 24-278-4 hydraulic flat cam into your Chrysler 426 HEMI, you’ll notice a noticeable bump in throttle response. The lift and duration are finely tuned for that street strip edge, giving your engine a more aggressive feel without sacrificing everyday drivability.
The moment you fire it up, the cam’s design really shines with a strong lope that’s enough to turn heads at stoplights. It’s clear that this cam is built for performance, offering solid gains in horsepower and torque across the mid-range.
You’ll feel a more lively acceleration whenever you punch the gas, especially with a turbocharged setup.
Installing it was straightforward, thanks to the trusted reputation of Competition Cams. The build quality feels top-notch, with precise machining that ensures durability under street strip conditions.
Plus, knowing it’s backed by a manufacturer’s warranty gives you peace of mind for the long haul.
In daily driving, the cam is surprisingly smooth, with minimal idle roughness, making it a practical choice for a street setup. But during hard acceleration, it really opens up, providing that raw, satisfying power surge you crave.
It’s a great upgrade that balances street manners with strip-ready performance.
Overall, this cam delivers noticeable performance improvements without the hassle of an overly aggressive idle or tune. If you want more punch from your HEMI with reliable quality, this is a solid pick.