VORTEX 227 MIDLOPE — 5.0L/5.7L VORTEC CHEVY Hydraulic Roller CAMSHAFT & LIFTERS
💥 Overview
The Vortex 227 MidLope is a performance-oriented hydraulic roller profile engineered for SBC street/strip builds that demand a commanding idle, strong midrange torque, and clean top-end power. With 227°/227° duration @ .050" and modern roller lobe geometry, this cam produces excellent cylinder pressure and sharp throttle response while maintaining enough vacuum for real street driving.
"middle ground" cam — big attitude at idle, strong midrange punch, and a wide powerband that pulls hard to 6500 RPM.
Available in 108°, 110°, and 112° LSA, each installed 4° advanced, this profile can be configured for an aggressive street lope, balanced street/strip manners, or EFI-friendly drivability.
If you want your SBC to sound mean and run strong everywhere, the Vortex 227 MidLope is the perfect match.
⚙️ Camshaft Specifications
Duration
@ .050" Lift: 227° intake / 227° exhaust
Advertised (@ .006"): ~260° / ~260°
Lift
Lobe Lift: .328" / .328"
Valve Lift:
1.5:1 rockers: .492" / .492"
1.6:1 rockers: .525" / .525" (recommended)
LSA Options
108° · 110° · 112°
Installed Intake Centerline
108° LSA → 104° ICL
110° LSA → 106° ICL
112° LSA → 108° ICL
Operating Range
2000 – 6500 RPM
Idle Quality
Aggressive / Mid-Level Lope
Ideal Use
Street/Strip · NA or Mild Power Adders · Performance SBC builds
🧭 Valve Timing Events @ .050" Lift
108° LSA (ICL 104°) — Aggressive Street/Strip
IO: 5° BTDC
IC: 42° ABDC
EO: 51° BBDC
EC: 3° ATDC
Overlap: ~8°
Character: deep lope, strongest throttle hit, heavy midrange torque
110° LSA (ICL 106°) — Best All-Around Street/Strip (standard)
IO: 3° BTDC
IC: 44° ABDC
EO: 49° BBDC
EC: 5° ATDC
Overlap: ~6°
Character: balanced power curve, crisp response, strong drivability
112° LSA (ICL 108°) — EFI/High Vacuum
IO: 1° BTDC
IC: 46° ABDC
EO: 47° BBDC
EC: 7° ATDC
Overlap: ~2°
Character: smoothest idle, best vacuum, EFI and power-brake friendly
🔩 Recommended Valvetrain Components (SBC)
Valve Springs: 130–140 lbs seat / ~350 lbs open
(Comp 987-16, PAC-1218, or equivalent)Pushrods: 5/16" or 3/8" chromoly (.080–.105 wall)
Lifters: hydraulic roller lifters (INCLUDED)
Rocker Arms: 1.5 or 1.6:1 full roller (1.7 optional with clearance verification)
Seal Clearance: .550" minimum retainer-to-seal
110° LSA — Street Performance
Stall: 2500–2800 RPM
Gears: 3.55–3.73
Use: strong launch, crisp midrange, ideal for mixed street/strip
108° LSA — Aggressive Street/Strip
Stall: 2800–3200 RPM
Gears: 3.73–4.10
Use: hardest lope, strongest midrange torque, high RPM pull
112° LSA — EFI / Overdrive
Stall: 2200–2500 RPM
Gears: 3.31–3.55
Use: best idle quality and drivability, EFI friendly
🔧 Best SBC Applications
Works best with 9.5:1–11.0:1 compression
Compatible with mild nitrous or blower setups
Great for muscle cars, street trucks, and weekend race cars
Vortex 227 MidLope — Small Block Chevy
The perfect middle ground: crisp, confident, and unmistakably aggressive.