SKU: 82074383826

2001-2004 GM HD Cast Iron Cylinder Head (One) LB7 (110100101)

Sale price$874.80 Regular price$972.00
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

2001-2004 GM HD Cast Iron Cylinder Head (One) LB7 (110100101)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 LB7 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 LB7 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, and heat and creep resistance, which prolongs the cylinder head's lifespan significantly.

PPE Cylinder Heads also share the same heat expansion rate as the stock cast-iron cylinder block no more blown head gaskets. PPE LB7 Cylinder Heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue.

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.

Duramax Iron Heads Upgrade: Diesel World

Unboxing PPEs new Duramax cylinder heads!: LinCo Diesel Performance

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
  • Cast-in fuel injector cups, no more fuel injector cup leaks
  • 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: 82074383826

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Fleur de Wreath
San Leandro, US
★★★★★ 4
Excellent Formula, but the Product Runs Out Far Too Quickly
Style: MULTIBALM
The balm is genuinely hydrating, smooth, and very convenient to use. It applies beautifully, gives the skin a healthy glow, and works well on dry areas, lips, and the face overall. The texture feels comfortable and nourishing without feeling overly heavy or greasy. My only major disappointment is the value for the price. Even using a very thin layer across the face once each evening, one stick lasted only about a week. I purchased two of them, and both were exactly the same, so this was clearly not an issue with a defective or partially filled tube. If you intend to use it regularly over the full face, expect it to run out extremely quickly. I purchased mine during a significant sale, and even at the discounted price I still felt disappointed by how little use I got from it. Overall, the formula performs well, but the quantity does not justify the regular price for consistent daily use.
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Reviewed in the United States on May 24, 2026
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Chelly
Port Orchard, US
★★★★★ 5
Youthful, even skin!
Style: MULTIBALM
I’m loving this stick! I almost sent it back after the first two days but I’m so glad I didn’t. This has really helped me look more refreshed. It’s def helped with shallow lines. Overall it’s made me skin more even. It’s very oily and it sits on your skin so I use it before bed. But I’ve noticed it’s helped balance my skin. I usually get really oily during the day but oddly as oily as this is it keeps my skin from getting oily during the day under my makeup. My makeup looks more even. It’s just overall been great for my skin and it’s made me look younger. Def recommend!
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Reviewed in the United States on May 21, 2026
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Elizabeth
San Leandro, US
★★★★★ 3
Hydrating moisturizer with pleasant scent
Style: MULTIBALM
Update: I’ve now used 2 sticks. I won’t be buying again. Although I like how convenient this moisturizer is, the price is too high for the amount you get. Also, going through another stick, I’ve noticed no signs that it helps with fine lines or wrinkles. This product is simply an on the go moisturizer or even a highlighter. But I can use castor oil and Vaseline for that. I had to deduct a star. So far, this moisturizing stick has been a great and convenient addition to my routine. It glides on smoothly and has a light, pleasant scent. The formula is definitely hydrating and leaves my skin feeling soft. It does go on a bit oily or greasy at first. If that bothers you, rubbing it in helps, though it doesn't absorb immediately—so expect a bit of shine for a while after application. As a moisturizer, it works well and I would definitely recommend it for anyone looking for a quick, on-the-go option. I haven’t noticed any additional benefits yet (like long-term improvements in skin texture or tone), but it might be too early to say. I’ll update my review if anything changes with continued use. I do have a couple of concerns. First, the price—it feels expensive for the amount of product you get. Second, I’ve seen some people compare this to Botox, and I’m not sure why. It’s definitely not a substitute, and expecting those kinds of results just isn’t realistic. Along those lines, the product name—“Wrinkle Bounce”—may be a little misleading. While it’s hydrating and may temporarily plump the skin, it doesn’t deliver dramatic wrinkle-reducing effects.
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Reviewed in the United States on June 2, 2025
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Kindle Customer Jools
Lexington, US
★★★★★ 5
Great Product!
Style: MULTIBALM
After reading many reviews I decided to try this product, my skin is dry with oily areas plus as I get older I have patchy small discolored areas. I love this product! After a few days of putting this on first thing am after washing my face, I found it balanced my skin beautifully! After washing my face to get ready for work, I discovered my makeup goes on so much more smoother, and stays in place without having to touch up constantly. It doesn’t remove wrinkles but definitely makes my skin smoother and wrinkles gentle versus distinctive. Great product!
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Reviewed in the United States on May 13, 2026
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fleshkill
Alexandria, US
★★★★★ 4
Wrinkles: Meh, KP: Yeah!
Style: MULTIBALM, Style: MULTIBALM
An okay moisturizer. Very shiny. Scent is old fashioned - kind of a floral baby powder scent. Takes a while to soak in which is by design since it only fills in the wrinkles instead of plumping them. The illusion is in the shine. You can see from my photos that in certain light the wrinkles appear slightly diminished due to the shine but you can clearly see they are still there in the shadows. While this example is on my hand, I had the same results under my eyes and on my forehead. I let the product soak in for 5 minutes in these photos. On the upside it worked temporary wonders on my KP!
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Reviewed in the United States on May 19, 2026

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