SKU: 93588469992

2004.5-2010 GM HD Cast Iron Cylinder Head (One) LLY/LBZ/LMM (110100103)

Sale price$607.50 Regular price$675.00
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

2004.5-2010 GM HD Cast Iron Cylinder Head (One) LLY/LBZ/LMM (110100103)Description 50 States Emissions Legal (E. O. D 701 38). 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-701-38). 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.

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
Notes
  • Requires the use of LBZ/LMM glow plugs on LLY engines.
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: 93588469992

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Amazon Customer
Bozeman, US
★★★★★ 1
Not what I ordered!
Color: Silver, Size: XX-Large, Color: Silver, Size: XX-Large
I ordered this jacket for my boyfriend for New Years. Not only did it not fit according to the size chart (too small). It was nothing like what was pictured on the listing. The sequins were very light and cheaply sewn on. And the lining and button were WHITE! Not black as pictured. I have never had a problem with anything I ordered from Amazon until now. I returned it and was refunded. But, now have to find a different jacket. NOT HAPPY.
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Reviewed in the United States on December 9, 2019
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Not a fan
Bozeman, US
★★★★★ 5
Good buy
Great fit and I always get lots of compliments on the blazer when I wear it
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Reviewed in the United States on October 28, 2025
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Lil Lynn
Omaha, US
★★★★★ 5
Man all I can say is WOW!
Man the quality and price for this is like no other. I wore this for a valentine engagement and people were coming around me and asking me can they have this like they were paparazzi. Folks out of the blue were just taking pictures of me. I can't believe how good and great this jacket is. Never had that many compliments of something I wore in my life and I always dress well in suits constantly. Got to buy some more of these things.
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Reviewed in the United States on February 17, 2020
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R. Cloud
New York, US
★★★★★ 3
Simple suit
If you’re wanting something fancy this isn’t for you. I got it to wear to a derby party an it’s perfect.
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Reviewed in the United States on April 10, 2026
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Stephanie Dunnam.
Birmingham, US
★★★★★ 1
Nope nope nope
Not impressed at All!! The color is off and the suit is cheap!! Pants run big as well!!
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Reviewed in the United States on March 21, 2026

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