Hamilton Cams 188/220 Cam Combo Kit 98-18 5.9L 6.7L Cummins 24-Valve
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This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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Complete 24-valve valvetrain package built on the 188/220 grind, which trades a little bottom end for stronger mid-range than the 178/208. Duration is 188 intake and 220 exhaust at .050 inch, operating from 1,700 to 4,500 RPM with a 200-300F EGT reduction.
What's Included
- 188/220 camshaft
- Heavy duty pushrods, rated from OEM power to 3,000 HP
- 103 lb valve springs
- Lifters and tappets
Key Features
- 188/220 duration at .050 inch lift
- 1,700-4,500 RPM operating range
- Drops EGT by 200-300F
- Increased mid-range power
- Valve springs prevent valve float; heavy duty pushrods prevent lost valve lift and retarded timing
Fitment
- 1998.5-2007 Dodge Ram 5.9L Cummins 24-valve
- 2007.5-2018 Ram 6.7L Cummins
- Flat-tappet engines only
Clearance Requirements
- 24-valve: .018 inch or less piston protrusion, minimum .038 inch valve face depth with a standard gasket
- If minimum clearance is not met, run an oversized head gasket or cut valve reliefs
Recommended Applications
- 24-valve engines with a 66mm or smaller charger at low RPM, or large singles at higher RPM
- Moderate singles or compound turbochargers — note that VP44 trucks should use the 178/208 instead
- Weekend performance use, drag strip and stock-class pulling
Break-In and Oil
Apply quality assembly lube to the camshaft and tappet faces, prime the oil pump and filter on a fresh build, and crank with fuel disconnected until oil pressure is confirmed. Never allow the engine to start without oil pressure. Perform any hot retorque before setting valve lash.
Flat-tappet valvetrains require 15W-40 oil with adequate zinc, phosphorus and molybdenum (5W-40 in sub-zero conditions). Approved oils include Valvoline, Schaeffer's, Mobil Delvac Extreme, LIQUI MOLY Touring High Tech, Driven Racing Oil and Shell Rotella.
Product Details
- Brand: Hamilton Cams
- Manufacturer Part Number: 07-cc-24V188
- UPC: 857340008315
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