VORTEX 227 MIDLOPE — Small Block Chevy Hydraulic Roller Billet Camshaft
For SBC 262 · 265 · 267 · 283 · 302 · 305 · 307 · 327 · 350 · 383 · 400
(Retrofit hydraulic roller tie-bar lifters required for non-roller blocks)
💥 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.
Designed for 350s, 383 strokers, 327 hot rods, and aggressive 305/307 builds, the MidLope is the ideal "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: Retrofit hydraulic roller tie-bar lifters
Rocker Arms: 1.6:1 full roller (1.7 optional with clearance verification)
Seal Clearance: .550" minimum retainer-to-seal
🏁 Recommended Torque Converter & Rear Gears
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
350 / 383 street/strip engines
327 hot rods and high-winding builds
Performance 305/307 applications
Carbureted or EFI combinations
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.