• Holley 508-21 Hi-Ram Top Plenum Gasket for GM LS-Series
  • Holley 508-21 Hi-Ram Top Plenum Gasket for GM LS-Series

Holley 508-21 Hi-Ram Top Plenum Gasket for GM LS-Series

$47.47 USD
$47.47 USD
$47.47 USD
Shipping calculated at checkout.

Vendor : HOLLEY

Product Type : Gaskets and Seals

Sku : HLY508-21

Hurry! Only
10
units left in stock!

✔ Veteran-Owned Business  |  ✔ Verified Fitment (SEMA Data)  |  ✔ Ships 1–3 Business Days  |  ✔ 30-Day Returns 

Gasket Kit O-Ring Cord Hi-Ram Intake Plenum

The Holley 508-21 Plenum Gasket is designed for the Hi-Ram top plenum used with GM LS-Series applications. It provides a sealing component for the connection between the intake plenum and its mating surface.

This gasket is supplied as one unit and is identified as an O-ring cord gasket kit for the Hi-Ram intake plenum. The application-specific design helps support proper sealing during installation when used with the corresponding Holley Hi-Ram components.

Choose the Holley 508-21 when replacing the plenum gasket on a compatible GM LS-Series Hi-Ram intake setup. Verify application requirements and mating components before installation.

Features:

  • Application: Hi-Ram top plenum
  • Vehicle platform: GM LS-Series
  • Gasket type: O-ring cord gasket kit
  • Quantity: Each
  • Brand: Holley
  • Part number: 508-21