🔥 Redline StreetStage 265/270 Hydraulic Roller Camshaft
For Chevrolet Big Block Engines
The Redline StreetStage 265/270 Hydraulic Roller Camshaft is designed to wake up your Chevy big block with crisp throttle response, a lopey but manageable idle, and strong torque where you need it most. Precision-engineered and hand-ground, this cam is built for enthusiasts who want performance without sacrificing street manners.
🔧 Camshaft Specs
Advertised Duration: 265° Intake / 270° Exhaust
Duration @ .050": 209° Intake / 214° Exhaust
Valve Lift (with 1.6:1 Rockers): .566"
Standard LSA: 106°
Optional LSAs: 108°, 110°, 112°, 114°
Cam Type: Hydraulic Roller
Engine Compatibility: Chevy Big Block
RPM Range: 1,400 – 5,200 RPM
✅ Perfect For
Chevy Big blocks with mild to moderate bolt-ons (headers, intake, carb/EFI upgrade)
Builders wanting reliable street power with a crisp, lopey idle
Classic muscle cars, hot rods, and trucks running 3.23–3.73 gears
Automatic cars with a 2000+ stall converter
⚡ Recommended Upgrades
Matched valve springs for .566" lift
Long-tube headers for maximum torque
Dual-plane performance intake manifold for strong street manners
Timing chain set, quality lifters, and hardened pushrods
🧠 Why Choose REDLINE CAMS?
For over 30 years, REDLINE has been building camshafts in-house with precision and care. No outsourcing. No shortcuts. Just proven performance backed by decades of real-world engine experience.
📊 Lobe Separation Angle (LSA) Options
Choosing your LSA fine-tunes how the cam behaves in your build. Here’s what each option delivers:
| LSA Option | Idle Quality | Torque Curve | Powerband Behavior | Best For |
|---|---|---|---|---|
| 106° (Standard) | Very lopey, aggressive | Strong low-end torque | Hard-hitting midrange, earlier peak | Street/strip builds craving attitude |
| 108° | Lopey but manageable | Strong torque | Good mix of midrange & drivability | Muscle cars, hot street builds |
| 110° | Noticeable but smoother idle | Balanced | Broader power curve, more street-friendly | Daily drivers w/ performance edge |
| 112° | Moderate idle, cleaner vacuum | Softer bottom end | Stronger top-end, smoother midrange | EFI builds, highway cruisers |
| 114° | Smoothest idle | Slightly less low-end | Very broad RPM range, softer hit | Towing, EFI, or high-vacuum applications |
Redline StreetStage 265/270 Hydraulic Roller Camshaft Chevy big block
🔧 Installation Instructions
⚠️ Disclaimer: Installation of performance camshafts should be performed by experienced builders or professionals. Incorrect installation can cause severe engine damage.
📦 Required Tools & Supplies
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Torque wrench (inch & foot-pound capable)
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Camshaft degree wheel
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Dial indicator & magnetic base
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Timing set (true roller recommended)
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Assembly lube (moly-based)
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Break-in oil (high zinc content, ZDDP)
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Harmonic balancer puller
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Engine gasket set
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New valve springs, locks, retainers (per recommended specs)
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Camshaft installation handle (optional, but helpful)
🛠️ Installation Steps
1. Preparation
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Disconnect battery and drain coolant.
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Remove valve covers, intake manifold, water pump, harmonic balancer, and timing cover.
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Remove rocker arms, pushrods, and lifters.
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Remove the old camshaft carefully to avoid damaging cam bearings.
2. Camshaft Installation
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Coat all lobes and journals with moly camshaft assembly lube.
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Slide the new camshaft into the block carefully, using a steady hand or cam installation handle.
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Install new timing set (true roller preferred) and align timing marks.
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Verify camshaft degree using a degree wheel to confirm correct intake centerline.
3. Valve Train Setup
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Install new hydraulic roller lifters (pre-lubed).
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Insert pushrods and rocker arms.
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Adjust preload on hydraulic lifters:
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Zero lash, then add 1/2 turn on rocker adjustment nut.
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Install recommended valve springs, locks, retainers, and seals. Verify coil bind clearance.
4. Reassembly
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Reinstall timing cover, harmonic balancer, water pump, and intake manifold.
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Reinstall valve covers and connect all accessories.
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Fill engine with break-in oil (ZDDP fortified).
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Reconnect battery.
5. Initial Startup & Break-In
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Prime oiling system with drill & priming tool until oil pressure is seen at all rocker arms.
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Set ignition timing to initial ~12–16° BTDC.
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Start engine and immediately hold RPM at 2,000–2,500 for 20 minutes to break in cam and lifters.
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Monitor oil pressure, coolant temperature, and for unusual noises.
6. Final Checks
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After break-in, change oil and filter.
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Re-check ignition timing and adjust as needed (typically 34–36° total timing for SBC).
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Verify idle quality and adjust carb/EFI fuel trims.
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Perform test drive and listen for detonation or valve train noise.
✅ Recommended Installation Notes
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Stall Converter: 2000+ recommended.
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Gears: 3.55–4.10 ratio ideal.
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Exhaust: Long-tube headers preferred.
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Springs: Must meet camshaft lift/pressure requirements.
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Fuel System: Ensure adequate fuel supply for performance use.
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