The Enginetech ES1045M is a street/strip performance camshaft for GM Big Block engines () applications.
Important Notes
- Required follower/lifter type: Hydraulic Flat
- No specific vehicle fitment - verify bore size, journal dimensions, and timing gear compatibility with your engine before ordering.
- Mark IV & V.
- Reverse rotation.
- Gear drive.
- Always replace all lifters when installing a new camshaft.
- A new timing set is strongly recommended.
Camshaft Specifications
| Part Number | ES1045M |
| Performance Grade | Street/Strip |
| Engine Family | GM Big Block |
| Required Follower/Lifter | Hydraulic Flat |
| Duration @ .050" Intake | 215 degrees |
| Duration @ .050" Exhaust | 219 degrees |
| Valve Lift Intake | .462" |
| Valve Lift Exhaust | .481" |
| Cam Lift Intake | .272" |
| Cam Lift Exhaust | .283" |
| Lobe Separation | 110 degrees |
Engine Applications
- 7.4L / 454 OHV V8 16V Chev. Big Block 4.250" Bore
Enginetech high-performance camshafts are ground to precision specifications using computer-aided design to maximize power output while maintaining street drivability. These performance grinds are designed as direct drop-in replacements requiring no engine modifications. Always install a new timing set and replace all lifters when installing a new camshaft - reusing worn lifters causes rapid lobe wear and premature failure. Use the specified follower type as indicated in the application notes. Verify bore size and journal dimensions match your engine block before ordering.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm.
