Ford 351C / 351M / 400M 270 High Output Hydraulic Flat Tappet Camshaft
.530" Lift Performance Cam — Multiple LSA Options
 
💥 Overview
The Redline Cams 270 High Output camshaft is designed to unleash the true potential of Ford’s Cleveland and Modified engines — the 351C, 351M, and 400M.
 
These engines are known for their excellent cylinder head airflow, and this camshaft is engineered to take full advantage of that capability. With 270° advertised duration and .530" valve lift using 1.73 rocker arms, this grind delivers strong mid-range torque, aggressive throttle response, and powerful upper RPM pull.
The cam produces a deep, lopey muscle-car idle while maintaining excellent street drivability when paired with the proper converter and gearing.
Multiple lobe separation angle options allow builders to tailor idle quality, torque curve, and vacuum characteristics depending on the build.
 
⚙️ Camshaft Specifications
Advertised Duration (@ .006")270° Intake  Exhaust
 
Duration @ .050"224° Intake  Exhaust
 
Lobe Lift.306" Intake  Exhaust
 
Valve Lift (1.73 Rockers).530" Intake  Exhaust
Camshaft TypeHydraulic Flat Tappet
 
Available Lobe Separation Angles108° • 110° • 112° • 114°
 
InstallationInstalled 4° Advanced
 
⏱ Valve Timing Events (.050")
(Installed 4° advanced)
108° LSA
Intake Centerline: 104°
Intake Opens: 8° BTDCIntake Closes: 36° ABDC
Exhaust Opens: 51° BBDCExhaust Closes: 39° ATDC
Overlap: 47°
Idle Character: Very aggressive lope
 
110° LSA
Intake Centerline: 106°
Intake Opens: 6° BTDCIntake Closes: 38° ABDC
Exhaust Opens: 49° BBDCExhaust Closes: 41° ATDC
Overlap: 47°
Idle Character: Aggressive street lope
 
112° LSA
Intake Centerline: 108°
Intake Opens: 4° BTDCIntake Closes: 40° ABDC
Exhaust Opens: 47° BBDCExhaust Closes: 43° ATDC
Overlap: 47°
Idle Character: Moderate lope with smoother vacuum
 
114° LSA
Intake Centerline: 110°
Intake Opens: 2° BTDCIntake Closes: 42° ABDC
Exhaust Opens: 45° BBDCExhaust Closes: 45° ATDC
Overlap: 47°
Idle Character: Smoothest idle and broad torque curve
 
🔧 Recommended Valvetrain
• Performance valve springs (120–140 lbs seat pressure)• Hardened pushrods• New hydraulic lifters• Hardened retainers and locks• Adjustable rocker arms recommended• Performance timing set
 
⚙️ Recommended Converter & Gearing
Manual TransmissionExcellent street performance
 
Automatic Transmission2200–2600 stall converter recommended
Rear Gear Ratio3.50 – 4.10 gears ideal
 
🚗 Applications
Compatible with:
• Ford 351 Cleveland (351C)• Ford 351 Modified (351M)• Ford 400M
 
Perfect for:
• Classic muscle cars• Street performance builds• Performance trucks• High compression street engines
 
Why Choose the Redline 268 Street Performer?
The Redline 268 Street Performer is the perfect upgrade for Cleveland engines that need more attitude and real street performance without going radical.
You get:
✔ Stronger throttle response
✔ Noticeable idle character
✔ Broad torque across the RPM range
✔ Reliable street manners
Install it, tune it, and your 351C / 351M / 400 will feel like an entirely different engine every time you hit the throttle.