Product Description
Industrial Injection PDM-362.020 forged Mahle race pistons are purpose-built for high boost and high heat Duramax builds. Sized .020" over for 2001-2016 GM 6.6L (LB7/LLY/LBZ/LMM/LML), these pistons feature performance crown and skirt coatings and a de-lipped bowl for added strength. Includes matched rings, wrist pins, and clips for a drop-in parts package your machine shop can finish to spec. [Ref]
Fitment
- 2001-2004 LB7 6.6L Duramax
- 2004.5-2005 LLY 6.6L Duramax
- 2006-2007.5 LBZ 6.6L Duramax
- 2007.5-2010 LMM 6.6L Duramax
- 2011-2016 LML 6.6L Duramax
What's Included
- (8) Forged race pistons - .020" oversize
- Matched piston ring set
- Wrist pins and retaining clips
Key Features
- Forged Mahle construction with crown & skirt coatings for heat management and reduced friction
- De-lipped bowl for strength under high cylinder pressure
- .020" oversize for fresh bores after machine work
- Built for competition and high-output street builds
- Optional .100" fly-cuts often used with high-lift cams (machine-shop operation)
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number | PDM-362.020 |
| Engine | GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML) |
| Bore Size | .020" over |
| Material | Forged aluminum (Mahle) |
| Included | 8 pistons, rings, wrist pins, clips |
| UPC | Not published by manufacturer |
| GTIN | Not published by manufacturer |
| Prop 65 | WARNING: This product can expose you to chemicals including lead and other substances, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. |
Recommended Parts
- ARP 230-4201 Head Stud Kit (01-16 Duramax)
- MAHLE HS54580 Head Set (2001-2004 LB7)
- MAHLE HS54580C Head Set (2011-2016 LML)
- S&S Diesel LML CP3 Conversion Kit - CARB Exempt (2011-2016)
- Shop All Duramax Pistons & Rings
- Shop Duramax Gaskets & Seals
- Shop ARP Fasteners
Helpful Notes
- Have your machine shop set piston-to-wall clearance and ring end gaps to your build spec.
- Confirm compression ratio, gasket thickness, and valve reliefs to match cam profile and power goals.
- For LML trucks, strongly consider a CP3 conversion to avoid CP4 failures on performance builds.
FAQ
Are these pistons drop-in?They are .020" oversize and require machining. Your builder will finish-hone the cylinders and set clearances and ring gaps.
Do they include rings and pins? Yes-each set includes matched rings, wrist pins, and clips.
Can I use these with a big-cam setup? Yes. Many high-lift builds add .100" valve reliefs (fly-cuts). Discuss with your machine shop and cam supplier.
What head gaskets and studs do you recommend? Pair with MLS head gaskets and ARP 230-4201 studs for boost-holding reliability.
Is this CARB legal? Pistons themselves are components, but your overall build and tune may affect emissions compliance. Check local laws before installation.
