Product Description
Industrial Injection PDM-298.020 Duramax Race Cast Pistons - .020 Over
Built for high cylinder pressure and heat. These performance cast pistons feature de-lipped bowls plus coated crowns and skirts to help manage heat and reduce friction in demanding Duramax builds.
- PDM-298.020 part number - .020" overbore (approx. +0.50 mm)
- De-lipped bowl for improved strength under high load
- Coated tops and skirts for heat & friction control
- Race-focused design; machine work & custom tuning recommended
Fitment
GM 6.6L Duramax diesel engines, model years 2001-2016:
Platforms: LB7, LLY, LBZ, LMM, LML.
Intended for blocks machined to .020" over.
What's Included
- (1) Set of race cast pistons (quantity as supplied by Industrial Injection for a V8 application)
- Coatings: crown & skirt as specified by manufacturer
Recommended Parts
- Performance piston rings (Duramax 6.6L)
- Heavy-duty wrist pins & locks
- ARP head studs for Duramax
- MLS head gasket & top-end kit
- Performance main & rod bearings
- Related Industrial Injection Duramax internals
Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Industrial Injection |
| Part Number | PDM-298.020 |
| Engine | GM Duramax 6.6L (LB7, LLY, LBZ, LMM, LML) |
| Model Years | 2001-2016 |
| Oversize | .020" over (≈ 0.50 mm) |
| Construction | Race cast aluminum, de-lipped bowl |
| Coatings | Coated crowns & skirts |
| UPC | - |
| GTIN | - |
| Prop 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
Helpful Notes
- Professional machining (boring/honing with torque plates) and piston-to-wall clearance must be verified by your engine builder.
- Not legal for use on pollution-controlled vehicles on public roads where emissions compliance is required.
FAQ
Will these pistons fit my LB7/LLY/LBZ/LMM/LML without machine work?No. These are .020" oversize. Your block must be bored and honed to match and final clearances checked by a qualified builder.
Do these include rings and pins?Pins and rings are typically sold separately. See the recommended parts links above for compatible options.
What's the advantage of de-lipped and coated pistons?The de-lipped bowl reduces a common stress riser, improving strength for high cylinder pressure. Coated crowns manage heat and coated skirts help reduce friction and scuffing.
Are these street legal with emissions equipment?These are race-oriented components. Check local laws. Installation may affect emissions compliance on public roads.
