The Story
Restore accurate cylinder head alignment on your GM LS Gen III/IV engine with application-specific cylinder head dowel pins. Designed to properly locate the cylinder head on the block, these dowels help support gasket alignment, sealing consistency, and a cleaner engine assembly.
Accurate Head Location
Precision dowel pins help position the cylinder head correctly on the engine block, reducing alignment issues during assembly.
Supports Gasket Sealing
Proper cylinder head location helps keep the head gasket aligned with the block and combustion chambers for a more reliable seal.
Application-Specific Fit
Designed for the listed engine family to support correct installation during cylinder head service, rebuilds, or performance upgrades.
Ideal for Rebuilds & Repairs
Recommended when replacing damaged, missing, or worn dowel pins during engine assembly or cylinder head installation.
COMPATIBLE WITH
GM LS SERIES V8 ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, L33, LC9, LH6, LY5)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, LY6, L76, L96)
• 6.2L / 376 in³ (LS3, L92, L99)
• 7.0L / 427 in³ (LS7, application-specific verification required)
COMMON VEHICLE APPLICATIONS
Chevrolet Corvette / Camaro LS-equipped models
GM Silverado / Sierra / Tahoe / Suburban LS-based applications
Pontiac Firebird / GTO / G8 LS-equipped models
Popular LS swap applications
NOTES
Designed for LS-based engines only.
Verify cathedral-port vs rectangular-port compatibility when selecting cylinder heads or intake manifolds.
Verify correct head bolt/stud style for your block, cylinder head casting, and model year.
Not compatible with Gen V LT direct-injection engines, Gen I SBC, or Big Block Chevy engines.
Specifications:
| Quantity | Sold as a kit |
Description
Restore accurate cylinder head alignment on your GM LS Gen III/IV engine with application-specific cylinder head dowel pins. Designed to properly locate the cylinder head on the block, these dowels help support gasket alignment, sealing consistency, and a cleaner engine assembly.
Accurate Head Location
Precision dowel pins help position the cylinder head correctly on the engine block, reducing alignment issues during assembly.
Supports Gasket Sealing
Proper cylinder head location helps keep the head gasket aligned with the block and combustion chambers for a more reliable seal.
Application-Specific Fit
Designed for the listed engine family to support correct installation during cylinder head service, rebuilds, or performance upgrades.
Ideal for Rebuilds & Repairs
Recommended when replacing damaged, missing, or worn dowel pins during engine assembly or cylinder head installation.
COMPATIBLE WITH
GM LS SERIES V8 ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, L33, LC9, LH6, LY5)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, LY6, L76, L96)
• 6.2L / 376 in³ (LS3, L92, L99)
• 7.0L / 427 in³ (LS7, application-specific verification required)
COMMON VEHICLE APPLICATIONS
Chevrolet Corvette / Camaro LS-equipped models
GM Silverado / Sierra / Tahoe / Suburban LS-based applications
Pontiac Firebird / GTO / G8 LS-equipped models
Popular LS swap applications
NOTES
Designed for LS-based engines only.
Verify cathedral-port vs rectangular-port compatibility when selecting cylinder heads or intake manifolds.
Verify correct head bolt/stud style for your block, cylinder head casting, and model year.
Not compatible with Gen V LT direct-injection engines, Gen I SBC, or Big Block Chevy engines.
Specifications:
| Quantity | Sold as a kit |
