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BTR Gen V LT4 MLS Head Gaskets

from $135.00
ARP Head Studs - OPTION:
Exhaust Manifold Gaskets:

BTR Gen V LT4 MLS Head Gaskets (Pair) BTR-54622-2

More power starts with a solid seal.

Whether you’re refreshing your LT4 or upgrading to FLAG Motorsports Mach V ported cylinder heads, fresh head gaskets are an essential part of the installation.

The BTR-54622-2 gasket set is a direct replacement for the factory LT4 head gaskets, featuring multi-layer steel (MLS) construction. According to BTR, these gaskets are produced by the same supplier as the original GM/ACDelco 12654622 units, offering an OE-style sealing solution for your build.

Sold as a pair, one set supplies both cylinder banks.

Product specifications

  • Part number: BTR-54622-2

  • Application: Gen V LT4

  • Construction: Multi-layer steel (MLS)

  • Gasket bore opening: 4.100"

  • Compressed thickness: .055"

  • OEM reference: GM/ACDelco 12654622

  • Includes: Two cylinder head gaskets

Recommended upgrade: ARP 234-4342 head studs

For performance LT4 builds, Griffin Motorsports recommends pairing these gaskets with the ARP 234-4342 head stud kit, sold separately. It’s a practical time to upgrade your cylinder-head fasteners while the heads are already off.

Complete your FLAG Mach V head installation

Installing FLAG Motorsports Mach V ported cylinder heads? Add this gasket pair and the ARP head stud kit to your installation parts list. Confirm gasket bore and thickness suitability for your combination, particularly if the block or heads have been machined.

Installation notes: Use new head gaskets when reinstalling the cylinder heads. Proper surface preparation and the correct fastener tightening procedure are essential.

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BTR Gen V LT4 MLS Head Gaskets (Pair) BTR-54622-2

More power starts with a solid seal.

Whether you’re refreshing your LT4 or upgrading to FLAG Motorsports Mach V ported cylinder heads, fresh head gaskets are an essential part of the installation.

The BTR-54622-2 gasket set is a direct replacement for the factory LT4 head gaskets, featuring multi-layer steel (MLS) construction. According to BTR, these gaskets are produced by the same supplier as the original GM/ACDelco 12654622 units, offering an OE-style sealing solution for your build.

Sold as a pair, one set supplies both cylinder banks.

Product specifications

  • Part number: BTR-54622-2

  • Application: Gen V LT4

  • Construction: Multi-layer steel (MLS)

  • Gasket bore opening: 4.100"

  • Compressed thickness: .055"

  • OEM reference: GM/ACDelco 12654622

  • Includes: Two cylinder head gaskets

Recommended upgrade: ARP 234-4342 head studs

For performance LT4 builds, Griffin Motorsports recommends pairing these gaskets with the ARP 234-4342 head stud kit, sold separately. It’s a practical time to upgrade your cylinder-head fasteners while the heads are already off.

Complete your FLAG Mach V head installation

Installing FLAG Motorsports Mach V ported cylinder heads? Add this gasket pair and the ARP head stud kit to your installation parts list. Confirm gasket bore and thickness suitability for your combination, particularly if the block or heads have been machined.

Installation notes: Use new head gaskets when reinstalling the cylinder heads. Proper surface preparation and the correct fastener tightening procedure are essential.