Hydraulic Flat Tappet Camshaft & Lifter Kit
Ford 351C / 351M / 400
🔥 Aggressive Street/Strip Power for Cleveland Engines
The Redline Vortex 294 Street Reaper is built for Cleveland-powered machines that demand vicious mid-to-top-end power, a deep aggressive idle lope, and serious street attitude.
If you’re chasing that “this engine sounds angry” idle while keeping the proven reliability of a hydraulic flat tappet setup, the Street Reaper delivers.
Built around 244° duration @ .050, this cam thrives in the 3,200–6,400+ RPM range, where Cleveland engines really come alive. With the airflow capability of 351C, 351M, and 400 cylinder heads, the Street Reaper produces strong mid-range acceleration and relentless top-end charge.
This cam is ideal for aggressive street builds, weekend strip cars, and hot rods running higher compression and upgraded cylinder heads.
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Camshaft Specifications
Engine Fitment: Ford 351 Cleveland / 351M / 400
Camshaft Type: Hydraulic Flat Tappet
Grind: Redline Vortex 294 Street Reaper
Advertised Duration (@ .006”)
Intake: ~294°
Exhaust: ~294°
Duration @ .050”
Intake: 244°
Exhaust: 244°
Lobe Lift
Intake: .326”
Exhaust: .326”
Valve Lift (1.73 Rocker Ratio)
Intake: .564”
Exhaust: .564”
Lobe Separation Angle Options
108°
110°
112° (Standard – recommended installed 4° advanced)
Recommended RPM Range
3,200 – 6,400+ RPM
Idle Quality
Very aggressive lope with deep exhaust chop.
Vacuum
Low to moderate — power brakes may require a vacuum reservoir.
What This Cam Is Built For
Perfect for Cleveland-based performance builds including:
• 351C street/strip muscle cars
• 351M / 400 performance truck builds
• High-flow aftermarket or ported cylinder heads
• Free-flowing exhaust systems
• Manual transmission cars
• Automatic cars with aggressive converters
This cam is designed for builders who want serious street attitude with real top-end horsepower.
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Recommended Supporting Components
To get the most from the Vortex 294 Street Reaper, we recommend:
• 2,500–3,000+ stall converter
• 3.73 – 4.10 rear gears
• Performance valve springs (130–140 lbs seat / 330+ open)
• Screw-in rocker studs and guideplates
• Hardened pushrods
• High-flow intake manifold
• 750–850 CFM carburetor or tuned EFI
• Long-tube headers with 2.5”+ exhaust
EFI applications will typically require custom tuning due to the cam’s overlap and aggressive idle signal.
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Installation Notes
This kit includes new hydraulic flat tappet lifters to ensure proper camshaft break-in and long-term reliability.
Proper camshaft break-in is critical:
• Use high-zinc ZDDP break-in oil
• Apply moly camshaft assembly lube to lobes and lifters
• Run engine at 2,000–2,500 RPM for 20–30 minutes during break-in
• Verify valve spring pressures are compatible with the camshaft
For high-pressure springs, removing the inner springs during break-in is recommended.
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Builder Notes
The Vortex 294 Street Reaper is not designed for mild street builds.
Expect:
• Aggressive idle behavior
• Reduced vacuum at idle
• Strong performance in 10:1–10.5:1 compression engines
This cam is best suited for serious street/strip Cleveland builds that want attitude and horsepower.