SKU: 96606571359

PPE Cast Iron Cylinder Heads 01-04 GM 6.6L Duramax LB7

Sale price$607.50 Regular price$675.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

PPE Cast Iron Cylinder Heads 01-04 GM 6.6L Duramax LB7If it becomes the unfortunate time for you to replace heads in your LB7 Duramax, look no further than the PPE Cast Iron Cylinder Head. This cylinder head offers the same heat expansion rate as the OEM cast block that completely resolves the common head gasket scrubbing issue. The specialty alloyed gray cast iron liquid cooled cylinder head has elevated strength in higher temperatures with creep resistance so blown head gaskets are a thing of the past.

If it becomes the unfortunate time for you to replace heads in your LB7 Duramax, look no further than the PPE Cast Iron Cylinder Head. This cylinder head offers the same heat expansion rate as the OEM cast block that completely resolves the common head gasket scrubbing issue. The specialty alloyed gray cast iron liquid cooled cylinder head has elevated strength in higher temperatures with creep resistance so blown head gaskets are a thing of the past.

Each head comes complete with brand new springs, spring retainers, spring locators, valves, valve seals, valve keepers, valve seats, valve guides, rocker arm dowels, and freeze plugs. The upgraded tapered valve springs provide faster response and eliminate valve float at high rpms and the CNC machined spring retainers and locators keep them all in place. The premium 21-4N stellite reinforced exhaust valves and chrome silicon alloy intake valves are all fully nitridated with increased abrasion resistance. Another feature of this upgraded head is the fuel injector cups are cast into the cylinder head, eliminating leaks caused by factory fuel injector cup seals.

With a set of these heads, you will notice a reduction in engine clatter compared to factory aluminum heads. Each head comes with a 3-year unlimited mileage warranty. Sold individually.

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: 96606571359

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4.8 ★★★★★
Based on 21 reviews
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Verified Purchase
RTD2
Natrona Heights, US
★★★★★ 5
Impressive Sound Deadening Solution with Enhanced Audio Quality
Model: NewSLS50_52
I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition. One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze. The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride. Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives. Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2023
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Verified Purchase
Charles H.
Lake Worth, US
★★★★★ 5
Good quality sound deadener at a good price.
Model: NewSLS50_52
Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.
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Reviewed in the United States on November 21, 2025
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Verified Purchase
Nick Frazier
Dallas, US
★★★★★ 4
Good stuff at a good price
Model: NewSLS50_52
Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price
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Reviewed in the United States on November 23, 2025
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Verified Purchase
Darren Gray
Lake Worth, US
★★★★★ 5
Good value
Model: NewSLS50_52, Model: NewSLS50_52
Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.
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Reviewed in the United States on March 23, 2026
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Verified Purchase
Tharin
Los Angeles, US
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
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Reviewed in the United States on April 26, 2025

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