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FrankBUILT Performance 2001-2004 LB7 Duramax 6.6L Head Gasket Kit w/Studs

FrankBUILT Performance 2001-2004 LB7 Duramax 6.6L Head Gasket Kit w/Studs

FBP-LB7-HGK-STUDS-1

$563.06 USD
$563.06 USD
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🔔 Important Notice: This product may be temporarily out of stock. Orders are still accepted, but please note that additional processing time may be required before shipping. Estimated lead time may vary depending on supplier availability. If you need the item urgently, please contact us to confirm current availability.

FrankBUILT Performance LB7 Head Gasket Combo Kit (2001–2004 Duramax 6.6L LB7)

Built for durability and precision, this LB7 Head Gasket Combo Kit gives your Duramax a complete top-end sealing solution — combining premium MAHLE gaskets, Merchant Automotive hardware, and your choice of ARP, PPE, or OEM fasteners for maximum reliability and performance.

Includes:

  • MAHLE HS54580 Head Set – Complete upper gasket kit with O-rings, seals, and RTV
  • MAHLE 54597 – Left Multi-Layered Steel (MLS) Head Gasket
  • MAHLE 54598 – Right Multi-Layered Steel (MLS) Head Gasket
  • Merchant Automotive 10040 – Injector Return Line Seals Kit

Required Option (Select One):

Choose one head stud or bolt option to complete your kit:

  • ARP 230-4201 – ARP Head Stud Kit
  • GM 11610681 – OEM Head Bolt Set
  • MAHLE GS33504 – MAHLE Head Bolt Set
  • PPE 118034300 – PPE Head Stud Kit

(One of the above options is required for purchase.)

Optional Cylinder Heads:

Fleece Performance FPE-61-10001-D-CL Freedom Series Cupless Cylinder Head
Premium direct-fit replacement for your LB7 that eliminates injector cup failures. Built from a brand-new aluminum casting, CNC-machined, and pressure-tested for durability. Ready to install with all new components.

  • No injector cups to leak — cupless injector bore design
  • Brand-new aluminum casting (no core charge)
  • CNC-machined with multi-angle valve job
  • Pressure & leak tested for reliability
  • New valves, guides, springs, and seals included
  • Ideal for daily drivers and towing applications
  • Fleece recommends GM 12637785 head gasket (Grade C, Left)

PPE 110100101 Cast Iron Cylinder Head
Heavy-duty upgrade for the LB7 designed to eliminate cracking, warping, and sealing issues. Cast in the USA from specialty alloyed gray cast iron for consistent clamping under heat.

  • 214N nitrided exhaust & chromoly-silicone intake valves
  • 125 lb conical valve springs with chromoly retainers
  • Cast-in injector cups eliminate leakage
  • Includes freeze plugs and dowels preinstalled
  • Prevents gasket scrubbing and cracking under heat
  • Upgraded pushrods recommended

PPE 110100111 Cast Iron Ported Cylinder Head
High-performance version featuring 5-axis CNC-ported intake and exhaust runners for improved airflow and power. Cast from premium alloyed gray iron to perfectly match the block’s expansion rate, eliminating head gasket issues.

  • 5-Axis CNC-ported intake and exhaust ports
  • Reduced noise & vibration for a smoother ride
  • Premium 21-4N, Stellite-reinforced nitridated valves
  • Higher fatigue strength, heat resistance & efficiency
  • Alloyed gray cast iron matches block expansion rate
  • Eliminates blown head gasket & injector cup issues
  • Includes rocker arm dowels & freeze plugs preinstalled
  • Ready to install – no machining required

Features:

  • Direct-fit replacement for 2001–2004 GM 6.6L Duramax LB7
  • Multi-Layered Steel (MLS) head gaskets for maximum durability
  • Rubber intake and MLS exhaust manifold gaskets included
  • Complete top-end solution with alignment pins and RTV sealant
  • Compatible with stock, towing, and performance builds
  • Trusted brands: MAHLE, ARP, PPE, Fleece, Merchant Automotive

Fitment:

  • 2001–2004 Chevrolet Silverado 2500HD / 3500HD (6.6L Duramax LB7)
  • 2001–2004 GMC Sierra 2500HD / 3500HD (6.6L Duramax LB7)
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📌 Before You Complete Your Purchase Please review the important information below regarding product accuracy, pricing, inventory, and return policies.

  • Terms & Conditions (TOS)

    Product Information Accuracy Disclaimer:

    "While we strive for accuracy, FrankBuilt Performance does not warrant that product descriptions, prices, or other content is error-free. In the event of an error, we reserve the right to cancel or correct any order placed for the incorrectly listed item."

    Price Changes:

    "Prices are subject to change without notice. Errors in pricing may occur and we reserve the right to refuse or cancel orders placed at incorrect prices."

    Inventory Disclaimer:

    "Inventory availability is not guaranteed. If an item becomes unavailable after an order is placed, we will contact you as soon as possible to offer alternatives or a full refund."

  • Shipping & Returns Policy

    Wrong Parts Received / Ordered:

    "It is the customer’s responsibility to verify product fitment before placing an order. If you receive the wrong item due to an error in our listing, we will work to resolve the issue. If the wrong item is ordered by mistake, restocking fees may apply."

    Restocking Fees and Return Eligibility:

    "Returns may be subject to a restocking fee. Items must be unused and in original packaging."
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