PPE Cast Iron Cylinder Head 2001-2004 GM 6.6L Duramax LB7 with Valve Train
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Regular price
$1,349.99
Regular price
-10%
$1,499.99
Sale price
$1,349.99
Heavy Item
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Verified Fitment & Application Support
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.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer and/or reproductive harm. For more information, visit
www.P65Warnings.ca.gov.
A complete cast iron cylinder head for 2001-2004 GM 6.6L Duramax LB7 engines, supplied with the valve train installed. The factory aluminum head expands at a different rate to the iron block, which scrubs the head gasket until it fails.
Key Features
- Cast from high-quality alloyed grey iron for fatigue strength, heat and creep resistance
- Same heat expansion rate as the stock cast-iron block, which is what ends head gasket scrubbing
- Not subject to the warping, melting and cracking that affects aluminum heads under heat
- Cast-in fuel injector cups, addressing the OEM injector cup leaking issue
- Ships complete with brand new springs, retainers, locators, valves, valve seals, keepers, seats, guides, rocker arm dowels and freeze plugs
- Premium 21-4N Stellite-reinforced exhaust valves and chrome-silicon alloy intake valves
- All valves fully nitrided for increased abrasion resistance
- Upgraded tapered valve springs for faster response, eliminating valve float at high rpm
- High-strength Chromoly steel CNC machined spring retainers and spring locators
- Powdered metal valve seats for superior wear and heat resistance
- Denser, stiffer cast iron construction noticeably reduces engine clatter
Fitment
2001-2004 GM 6.6L Duramax LB7 applications.
Note: this listing is for a single cylinder head. A complete engine requires two.
Note: PPE also offers a CNC-ported version as part number 110100111, and a bare version without valve seat pockets as 110100061 for builds that need a custom valve job.
Note: PPE has not published CARB certification for these cylinder heads, and distributors list them as not for sale in California pending certification. Confirm before ordering into California.
Note: for extreme-performance builds generating excessive heat, PPE recommends upgrading to oversized exhaust valve seats with increased interference.
Product Details
- Manufacturer: Pacific Performance Engineering (PPE)
- Manufacturer Part Number: 110100101
- Finish: Raw
- Material: Alloyed Grey Cast Iron
- Valve Train: Included, fully nitrided valves
- Valve Seats: Alloy
- Quantity: One cylinder head
- Emissions: CARB E.O. D-701-38, 50-state legal
- Condition: New
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