Auto Racing Products 134-1504 Rear Engine Cover Bolt Kit - 12pt. Chromoly Black Oxide — Fits GM LS1/LS2

SKU: BQDN_134-1504
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Premium Rear Engine Cover Security for LS1/LS2

Enhance the sealing and durability of your GM LS1 or LS2 engine's rear cover with the Auto Racing Products (ARP) 134-1504 Rear Engine Cover Bolt Kit. These top-tier fasteners are meticulously engineered to provide maximum clamping force and prevent leaks, which are critical for maintaining engine oil pressure and cleanliness. Forged from high-strength chromoly steel and treated with a robust black oxide finish, these bolts are built to endure the most demanding engine conditions.

Advanced 12-Point Head for Superior Torque

This kit features advanced 12-point head bolts, which allow for greater torque application and easier access in tight engine bay spaces compared to traditional hex heads. Each bolt is precision-machined to ARP's legendary standards, ensuring perfect thread engagement and uniform clamping across the rear engine cover. This design minimizes the risk of fastener stretch and loosening, providing a secure, long-lasting seal.

  • Material: Premium Chromoly Steel
  • Head Style: 12-Point for enhanced grip
  • Finish: Black Oxide for extreme durability
  • Application: GM LS1/LS2 Series Engines
  • Quantity: Set of 12 bolts

Invest in Uncompromising Engine Fasteners

The rear engine cover is a critical sealing point, and using inferior fasteners can lead to frustrating and costly oil leaks. ARP 134-1504 bolts offer a significant performance upgrade, providing unmatched tensile strength and resistance to fatigue. Protect your investment and ensure the longevity of your LS1/LS2 engine with the reliability only ARP can deliver. Explore the full selection of ARP components at GGCRACING.COM.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Premium Rear Engine Cover Security for LS1/LS2

Enhance the sealing and durability of your GM LS1 or LS2 engine's rear cover with the Auto Racing Products (ARP) 134-1504 Rear Engine Cover Bolt Kit. These top-tier fasteners are meticulously engineered to provide maximum clamping force and prevent leaks, which are critical for maintaining engine oil pressure and cleanliness. Forged from high-strength chromoly steel and treated with a robust black oxide finish, these bolts are built to endure the most demanding engine conditions.

Advanced 12-Point Head for Superior Torque

This kit features advanced 12-point head bolts, which allow for greater torque application and easier access in tight engine bay spaces compared to traditional hex heads. Each bolt is precision-machined to ARP's legendary standards, ensuring perfect thread engagement and uniform clamping across the rear engine cover. This design minimizes the risk of fastener stretch and loosening, providing a secure, long-lasting seal.

  • Material: Premium Chromoly Steel
  • Head Style: 12-Point for enhanced grip
  • Finish: Black Oxide for extreme durability
  • Application: GM LS1/LS2 Series Engines
  • Quantity: Set of 12 bolts

Invest in Uncompromising Engine Fasteners

The rear engine cover is a critical sealing point, and using inferior fasteners can lead to frustrating and costly oil leaks. ARP 134-1504 bolts offer a significant performance upgrade, providing unmatched tensile strength and resistance to fatigue. Protect your investment and ensure the longevity of your LS1/LS2 engine with the reliability only ARP can deliver. Explore the full selection of ARP components at GGCRACING.COM.

Product Details

Product Description

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Premium Rear Engine Cover Security for LS1/LS2

Enhance the sealing and durability of your GM LS1 or LS2 engine's rear cover with the Auto Racing Products (ARP) 134-1504 Rear Engine Cover Bolt Kit. These top-tier fasteners are meticulously engineered to provide maximum clamping force and prevent leaks, which are critical for maintaining engine oil pressure and cleanliness. Forged from high-strength chromoly steel and treated with a robust black oxide finish, these bolts are built to endure the most demanding engine conditions.

Advanced 12-Point Head for Superior Torque

This kit features advanced 12-point head bolts, which allow for greater torque application and easier access in tight engine bay spaces compared to traditional hex heads. Each bolt is precision-machined to ARP's legendary standards, ensuring perfect thread engagement and uniform clamping across the rear engine cover. This design minimizes the risk of fastener stretch and loosening, providing a secure, long-lasting seal.

  • Material: Premium Chromoly Steel
  • Head Style: 12-Point for enhanced grip
  • Finish: Black Oxide for extreme durability
  • Application: GM LS1/LS2 Series Engines
  • Quantity: Set of 12 bolts

Invest in Uncompromising Engine Fasteners

The rear engine cover is a critical sealing point, and using inferior fasteners can lead to frustrating and costly oil leaks. ARP 134-1504 bolts offer a significant performance upgrade, providing unmatched tensile strength and resistance to fatigue. Protect your investment and ensure the longevity of your LS1/LS2 engine with the reliability only ARP can deliver. Explore the full selection of ARP components at GGCRACING.COM.

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