ARP Main Stud Kit Chromoly Steel Black Oxide for Chevy Duramax LB7 LLY Engines
ARP Main Stud Kit Chromoly Steel Black Oxide for Chevy Duramax LB7 LLY Engines
ARP

ARP Main Stud Kit Chromoly Steel Black Oxide for Chevy Duramax LB7 LLY Engines

Part # 230-5401 SKU ARP230-5401

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$294.99
$286.99
You save $8.00 )
In stock, ships from a US warehouse
SKU: ARP230-5401
UPC: 672036035440
Width: 4.00 (in)
Height: 9.00 (in)
Depth: 2.00 (in)
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Shipping
Free, US only. Arrives in 2–4 days.
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30-day returns. Wrong fit? Our team is here 24/7. Details
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Highlights

Alloy
ARP2000
Application
for Chevy / GM Duramax LB7 & LLY
Assembly lubricant included
Yes
Bolt/stud kit
Stud/Bolt
Broached allen size1
3/16 in
Fastener type
Stud
Head size1
11/16 in
Head size2
9/16 in
Head/nut style1
12 Point
Head/nut style2
12 Point
Head/nut1 quantity
10
Head/nut2 quantity
10
Item weight
5.70 lb
Main style
2-Bolt Mains
Material
Chromoly Steel (ARP2000 Alloy)
Nut style
12-Point
Prop 65 warning
Warning applies
Thread sizes
Primary: 14 mm Secondary: 12 mm
Thread1
14 mm
Thread2
12 mm
Type
Engine Block Fastener Kit
Washers included
Yes

Description

ARP Main Stud Kit Chromoly Steel Black Oxide for Chevy Duramax LB7 LLY Engines

The ARP Main Stud Kit is engineered specifically for enhancing the performance and durability of Chevy Duramax LB7 and LLY engines. Constructed from premium chromoly steel, this kit provides superior strength compared to traditional factory bolts, ensuring increased clamping force and reliability during high-performance applications. The black oxide finish not only adds an appealing aesthetic but also offers excellent corrosion resistance, contributing to the longevity of the installation under demanding conditions.

This main stud kit aims to address common issues faced by modified or high-output engines, such as warped main caps and blown head gaskets. By utilizing ARP's high-tensile strength studs, you can achieve consistent torque retention, which is critical in optimizing engine performance and maintaining engine integrity under extreme operating conditions. The studs are precision-engineered to provide accurate fitment and alignment, making installation straightforward and efficient.

FITMENT:
This Main Stud Kit is specifically designed for use with Chevy Duramax LB7 and LLY engines, ensuring a perfect match for these high-performance applications. Installation of this kit is recommended for those looking to upgrade their engine assembly for enhanced performance and durability.

Key Features & Benefits

  • Manufactured from high-quality chromoly steel for added strength and durability.
  • Black oxide finish provides enhanced corrosion resistance.
  • Designed to improve clamping force and maintain consistent torque.
  • Precision-engineered for easy installation and an exact fitment.
  • Enhances engine reliability in high-performance and modified applications.

Specifications
Identification
BrandARP
Part number230-5401
SKUARP230-5401
UPC672036035440
Dimensions and weight
Dimensions (W × H × D)4.00 × 9.00 × 2.00 in
Material and finish
FinishBlack Oxide
MaterialChromoly Steel (ARP2000 Alloy)
Series and warranty
Details
AlloyARP2000
Applicationfor Chevy / GM Duramax LB7 & LLY
Assembly lubricant includedYes
Bolt/stud kitStud/Bolt
Broached allen size13/16 in
Fastener typeStud
Head size111/16 in
Head size29/16 in
Head/nut style112 Point
Head/nut style212 Point
Head/nut1 quantity10
Head/nut2 quantity10
IncludesMain Studs, 12-Point Nuts,Hardened Washers, Assembly Lubricant
Item weight5.70 lb
Main style2-Bolt Mains
Nut style12-Point
Prop 65 warningWarning applies
Thread sizesPrimary: 14 mm Secondary: 12 mm
Thread114 mm
Thread212 mm
TypeEngine Block Fastener Kit
Washers includedYes

Shipping and returns

Shipping. Free on every order, US only. Orders arrive in 2–4 days.

Returns. 30-day returns, except in extreme cases.

Support. Our team is available 24/7 for fitment mismatches or any other reason.

Warranty. Full manufacturer guarantee.

ARP Main Stud Kit Chromoly Steel Black Oxide for Chevy Duramax LB7 LLY Engines
ARP Main Stud Kit Chromoly Steel Black Oxide for Chevy Duramax LB7 LLY Engines
$294.99
$286.99
You save $8.00 )
In stock · free shipping

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