Complete Supertech package for the 4.2L 40V Chain engine.
Kit 1: This package includes our proprietary Supertech standard size valves. Reusing your factory triple groove valve keepers is required.
- Supertech Black Nitride Intake Valves (Standard Size)
- Supertech Inconel Exhaust Valves (Standard Size)
- Supertech Intake Valve Springs
- Supertech Dual Exhaust Valve Springs
- Supertech Exhaust Valve Spring Seat Locators
- Supertech Titanium Retainers
- Supertech Valve Guides
- Viton Valve Guide Seals
Kit 2: This package includes oversized valves and is to only be used with aftermarket pistons which incorporate a larger valve relief. Our AMTuned Piston & Rod package is a perfect solution for this package. Looking for a trusted source to rebuild your cylinder heads? We have you covered! Click here for out cylinder head rebuild service.
- Supertech Black Nitride Intake Valves +1mm
- Supertech Inconel Exhaust Valves +1mm
- Supertech Single Groove Valve Keepers
- Supertech Intake Valve Springs
- Supertech Dual Exhaust Valve Springs
- Supertech Exhaust Valve Spring Seat Locators
- Supertech Titanium Retainers
- Supertech Valve Guides
- Viton Valve Guide Seals
Kits are built to order and typically ship within 7 business days.