Torque Assassin 300 – Dodge Mopar 318/360 Hydraulic Roller Camshaft (1992–2003)
Strike fear into the streets with the Torque Assassin, a hydraulic roller camshaft designed to make your Mopar 318 (5.2L) or 360 (5.9L) Magnum come alive. Built for enthusiasts who crave a lopey idle, hard-hitting midrange, and lethal top-end power, the Torque Assassin is a no-compromise choice for serious street/strip performance.
With 243°/243° duration @ .050", an advertised duration of 300°, and .533" lift (with 1.6:1 rockers), this cam delivers brutal airflow and RPM capability while staying EFI-compatible. Pair it with the right supporting mods, and your Magnum will have the sound, presence, and performance to match its name.
🔧 Camshaft Specs:
Intake Duration @ .050": 243°
Exhaust Duration @ .050": 243°
Advertised Duration: 300°
Valve Lift (with 1.6 rockers): .533"
Lobe Separation Angle (LSA): 114°
RPM Range: 2,500–6,200+ RPM
Cam Type: Hydraulic Roller
EFI/OBD-II Compatible: ✅ Yes (custom tuning recommended)
✅ Perfect For:
Mopar Magnum 318 & 360 engines (1992–2003)
Street/strip builds craving a lopey, hard-hitting idle
High-performance Dakotas, Rams, and muscle cars
Builders who want a lethal balance of sound and power
🔥 Why Run the Torque Assassin:
Aggressive lopey idle that commands attention
Brutal midrange and high-RPM horsepower
Works with EFI and computer-controlled systems (tuning recommended)
Loves headers, free-flowing exhaust, and performance intakes
Hard-hitting and lethal on both street and strip
⚙️ Recommended Supporting Mods:
2800+ Stall Torque Converter
Performance Valve Springs (matched to cam specs)
Long-Tube Headers & Exhaust
Upgraded Timing Chain Kit
Hardened Valve Locks & Steel Retainers
High-Quality Valve Seals
🧠 Built by Redline Cams – Over 30 Years of Experience
Every camshaft is made from a brand-new core and precision-ground in-house. With over three decades of expertise, our cams are crafted with the same care and precision we’d demand in our own engines.
Torque Assassin 300/.533– Mopar 318/360 Hydraulic Roller Camshaft (1992–2003)
🛠️ Installation Instructions
REDLINE CAMS – Dodge Mopar 318/360 Magnum Hydraulic Roller Camshaft (1992–2003)
⚠️ Important Notes Before Installation
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Magnum engines use pedestal-mounted rockers; check pushrod length with aftermarket cams.
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Requires high-zinc (ZDDP) oil during break-in and regular operation.
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Verify valve spring pressure, retainer-to-seal clearance, and piston-to-valve clearance.
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Recommended upgrades for most performance cams:
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Performance valve springs & retainers
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Upgraded timing chain set
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Headers & free-flowing exhaust
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2000+ stall converter (for aggressive cams)
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Reprogrammed ECU/tuning for max gains
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🔧 Tools & Supplies Needed
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Basic hand tools (sockets, wrenches, screwdrivers)
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Harmonic balancer puller
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Torque wrench
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Assembly lube (moly-based)
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Break-in oil with ZDDP
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Mopar Magnum intake, valve cover, and timing cover gaskets
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Engine timing light
📖 Step 1 – Disassembly
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Disconnect the battery.
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Drain coolant and remove radiator (recommended for clearance).
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Remove accessory drive belt, fan, water pump, and timing cover.
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Remove distributor (note rotor position).
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Remove intake manifold, valve covers, rocker arms, and pushrods.
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Remove lifters and store them in order (if reusing).
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Remove old timing set and camshaft carefully.
📖 Step 2 – Camshaft Installation
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Clean block and inspect cam bearings.
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Coat new camshaft lobes and journals with assembly lube.
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Carefully slide camshaft into block (avoid nicking bearings).
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Install new timing chain set, aligned to factory timing marks.
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Optionally, degree the camshaft for max accuracy.
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Reinstall timing cover with new gasket and harmonic balancer.
📖 Step 3 – Valvetrain Setup
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Install lifters with assembly lube in their bores.
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Reinstall pushrods and rocker arms.
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Torque rocker pedestal bolts to factory spec (17–19 ft-lbs).
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Check hydraulic preload (Magnums use non-adjustable rockers):
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If preload is incorrect, correct with pushrod length.
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Verify valve spring pressure meets camshaft requirements.
📖 Step 4 – Reassembly
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Reinstall intake manifold with new gaskets.
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Reinstall distributor, setting base timing near stock.
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Reinstall valve covers, accessories, radiator, and coolant hoses.
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Reconnect wiring and battery.
📖 Step 5 – Initial Startup & Break-In
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Fill engine with break-in oil (with ZDDP).
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Prime oil system (via oil pump driveshaft with drill).
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Start engine and bring RPM to 2,000–2,500 for 20–25 minutes.
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Monitor oil pressure, coolant temp, and listen for abnormal valvetrain noise.
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📖 Step 6 – Post-Install Checks
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Change oil and filter after break-in.
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Recheck ignition timing with timing light.
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Verify pushrod preload and valvetrain stability.
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For EFI trucks: allow PCM to relearn or have it tuned for best performance.
✅ Your REDLINE CAMS Magnum Hydraulic Roller Camshaft is now installed — bringing Mopar muscle to life with improved throttle response, lope, and street/strip performance.
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