DNJ
DNJ Valve Guide 2001-2007 Chevrolet, GMC 8.1L
DNJ Valve Guide 2001-2007 Chevrolet, GMC 8.1L
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Listed for: 2001–2007 Chevrolet and GMCFitment notes & questions
Valve Guide from DNJ, listed for 2001–2007 Chevrolet and GMC with the 8.1L engine. Valves are usually replaced during a cylinder head rebuild, along with guides, seals and a valve job.
Quick facts
- Brand: DNJ
- Part type: Valve
- Listed for: 2001–2007 Chevrolet and GMC
- Engine: 8.1L
- Engine code: VIN G N/R 16V OHV
- Part number: VGE3181
Listed fitment
- [2001-2007] GM [9.5mm I.D.; 15.8mm O.D.; 66.6mm O.A.L.; [Chimney: 15.7mm O.D.; 54.6mm Hgt.]] / V8 / 8.1L / 496 OHV 16V [(VORTEC)]
Good to know
- Notes: 9.5mm I.D.; 15.8mm O.D.; 66.6mm O.A.L.; [Chimney: 15.7mm O.D.; 54.6mm Hgt.]; Exhaust
- Warranty terms: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.
Tip: Have the valve seats cut or lapped so the new valves seal fully.

About this valve for the Chevrolet and GMC
Valves are usually replaced during a cylinder head rebuild, along with guides, seals and a valve job.
Fitment notes
- Listed for: 2001–2007 Chevrolet and GMC.
- Model years: 2001–2007. Parts can change mid-generation, so match the exact year.
- Engine: the same car can take different parts for each engine option, so check yours.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentParts that usually go with it
- Valve stem seals. Always new with new valves.
- Head gasket. The head comes off for this job.
More for your car: GMC Valve Guides · Chevrolet Parts · All Intake Valves · Engine
Questions about Chevrolet and GMC engine valves
Will this fit my Chevrolet and GMC?
It is listed for the 2001–2007 Chevrolet and GMC. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
How do I know a valve is bad?
A compression or leak-down test shows whether a cylinder is losing pressure past a valve.
Where do specs and warranty details come from?
From DNJ. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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