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HOLLEY Im Gasket Set, O-Ring LS3/LS7

Original price was: £65.93.Current price is: £62.63. Inc. VAT

SKU: HOL508-22 Categories: , , Brand:

Description

Part Number: 508-22

Holley LS3 & LS7 Intake Manifold Mounting Flange Gasket O-Rings

High-temperature Viton replacement O-ring gasket set engineered for Holley GM LS3 and LS7 intake manifolds.

Key Features

  • ☑ Premium Viton material for high thermal resistance and chemical endurance
  • ☑ Precision 3/32″ round cross-section cord for a dependable flange seal
  • ☑ Specific size 2-146 specifications with 2-5/8″ internal diameter (I.D.)
  • ☑ Complete set of 8 replacement O-rings for GM LS3 and LS7 intake ports
  • ☑ Fits Holley Hi-Ram and modular intake manifold mounting flange grooves

Technical Specifications

Brand Holley
Part Number 508-22
Material Viton Rubber
O-Ring Cross Section 3/32″ Round Section Cord
O-Ring Size 2-146
Inside Diameter (I.D.) 2-5/8″
Color Black
Engine Compatibility GM LS3 / LS7 V8 Engines
Manifold Compatibility Holley LS3 / LS7 Intake Manifolds
Quantity Set of 8

What’s Included in the Box

  • 8 x Holley Viton Intake Manifold Flange O-Rings (PN 508-22)

As an official UK stockist, JP Racing supplies genuine Holley performance engine hardware backed by technical motorsport expertise and rapid UK dispatch. Maintain optimal intake sealing for your LS build with genuine replacement seals.

Frequently Asked Questions

Holley part number 508-22 is specifically engineered for GM LS3 and LS7 engine applications equipped with Holley intake manifolds, including the Holley Modular Hi-Ram series. For LS1, LS2, or LS6 manifolds, Holley specifies part number 508-23 instead.

Viton synthetic elastomer offers superior resistance to elevated temperatures, fuel vapors, and engine oil compared to standard rubber compounds. This provides long-term seal reliability under demanding naturally aspirated and forced-induction racing conditions.

Always test-fit the intake manifold dry without O-rings to check alignment and fastener engagement. For final assembly, place the eight Viton O-rings into the manifold flange grooves, applying a thin film of light grease to hold them securely before torquing the bolts.

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