SKU: 37707470875

2011-2016 GM HD LML Cast Iron Cylinder Head (110100105)

Sale price$874.80 Regular price$972.00
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

2011-2016 GM HD LML Cast Iron Cylinder Head (110100105)Description 50 States Emissions Legal (E. O. D 701 PENDING) The OEM Duramax cast aluminum cylinder heads fall short over time the different heat expansion rates between cast iron engine block and cast aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and or cracking in high performance applications where excessive heat is introduced. PPE's new Cast Iron

Description

50 States Emissions Legal (E.O. D-701-PENDING)

The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and/or cracking in high-performance applications where excessive heat is introduced.

PPE's new Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, heat, and creep resistance, which prolongs the cylinder head's lifespan significantly.

PPE Cylinder Head also shares the same heat expansion rate as the stock cast-iron cylinder block - no more blown head gaskets.

Each head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The tapered valve springs' higher spring rate and lighter retainers/locators enable faster response during higher RPMs and eliminate valve float.

Powder metal valve seats provide superior wear and heat resistance. The denser and stiffer material properties from the cast-iron construction also significantly reduce engine clatter.

Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice.

Important Note: The valve seats of the PPE Heavy Cast Iron Cylinder Heads are installed with an interference that maximizes the durability and lifespan of the cylinder heads. Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created.

For those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (+0.006 Inch to +0.008 inch) oversized exhaust valve seats (Nominal size 34mm).

Features
  • Specially alloyed gray cast iron liquid-cooled cylinder head
  • Superior heat resistance and creep resistance
  • Eliminates head gasket scrubbing issue (blown head gasket)
  • Better thermal efficiency and fuel efficiency than factory aluminum heads
  • Higher fatigue strength and heat resistance
  • Premium 21-4N, Stellite-reinforced exhaust valves
  • Fully nitridated intake and exhaust valves for better abrasion resistance
  • Case-hardened chromoly spring retainers/locators
  • Upgraded springs for better responsiveness
  • Ready to install - comes with installed valves/springs, rocker arm dowels, and freeze plugs
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37707470875

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Kindle Customer
Battle Creek, US
★★★★★ 5
Awesome bra!
This bra is so comfortable. I love the fact that you can adjust the straps and the front to make it fit a short person's torso. This bra lifts and so far, has not stretched out.
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Reviewed in the United States on April 21, 2026
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jac Hutt
Whiting, US
★★★★★ 4
Soft and Comfortable
Size: 46D, Color: Black
Size 46 D, black. Very Comfortable ! The strap adjustments are in front so it would be easy for someone who needed a caregiver to help them dress. The cups fit well with no gaps or wrinkles and the back lays smoothly, with no irritating seems or crossovers. The chest band is one piece, so no irritating seams, and its a little more supportive than my usual at home or bedtime bras. I tried it on and decided to wear it an hour to see if it stayed comfy while I moved around the house. It was so comfortable I forgot to change it! I ordered the black and when I machine washed it there was no dye bleeding. Hung to dry. Wearing it again and I think it just might become my new favorite. If I still love it, I might purchase another color in next month's shopping budget.
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Reviewed in the United States on February 2, 2026
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Linda F
Bozeman, US
★★★★★ 5
Extremely Comfortable
This bra is the most comfortable bra I have worn. It is so comfortable it doesn't even feel like I am wearing a bra. There are no unfinished seams inside. I like the fact the shoulder straps are hook and eyes that don't slip like the conventional straps. This bra is reasonably priced and nicely made with good support.
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Reviewed in the United States on January 29, 2026
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Barbara di Luciccone-Viscardi
Omaha, US
★★★★★ 1
DELMIRA BRAS
Size: 36DD, Color: Gentle Rose
I don’t care for this bra whatsoever. The material is very cheap, has no support and in a nutshell, it’s one of those bras you can wear to bed if you’re not feeling comfortable going to bed braless. The price ($19.99) is very high for this bra. It’s definitely not made well or worth the price. I’ll never buy from Delmira again.
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Reviewed in the United States on February 23, 2026
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A M C
Pawtucket, US
★★★★★ 5
The most comfortable bra I’ve ever had
I have been searching for a comfortable bra in my large size that I can just pull on over my head. This bra has so many pluses for my needs! The design and construction are impressive for any price, and the fabric is pleasant on my skin. I’m having shoulder surgery soon and was so pleased to find I can easily unhook (and rehook) a strap to accommodate the surgical site as it heals. Even so, there’s decent support, which was not a concern but is a pleasant surprise. I wish there were more available, especially in soft colors, but at least I have 3.
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Reviewed in the United States on February 1, 2026

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