C2 1963-1967 Corvette Firewall Hole Plug - 4-Speed

Reclaim a clean, periodcorrect engine bay with the C2 1963–1967 Corvette Firewall Hole Plug – 4Speed. Specifically engineered for midyear Corvettes equipped with a manual (4speed) transmission, this reproduction plug seals the unused firewall opening above the clutch push rod. By closing off this port, you curb drafts, moisture, and debris from entering the engine bay or interior, delivering a more comfortable cockpit and a showroomready engine compartment.

Key benefits that matter in restoration and care

• Directfit, factorylike accuracy: Designed to align with the original firewall opening above the clutch linkage, delivering a seamless, authentic look without modification.
• OEMsized precision: Manufactured to maintain the correct diameter and profile for 1963–1967 Corvette C2 models with 4speed manuals, ensuring a snug, secure seal.
• Seals in the right place: Specifically positioned to close the unused hole typically found above the clutch linkage, protecting interior components and preventing air, moisture, and debris intrusion.
• Authentic appearance and feel: Reproduction made to replicate the original design, contributing to a clean, factorycorrect engine bay that stands up to close inspection.
• Durable construction: Built from sturdy plastic or rubber, chosen to withstand temperature variations in the firewall area while maintaining a tight fit.
• Easy, nomodification installation: Pressfit installation that you can complete as part of a routine restoration or maintenance session.

Who this is for

Ideal for Corvette enthusiasts performing a complete restoration of 1963–1967 C2 MidYear models, particularly those aiming for concourslevel accuracy or a showroomquality engine bay. It’s also a practical replacement for missing or deteriorated firewall plugs on 4speed manuals, helping preserve cabin comfort and interior protection over time.

Practical use cases and outcomes

• During a nutandbolt restoration, this plug ensures the firewall looks and performs like new, with an authentic crosscheck against factory references.
• In daily restoration projects, it prevents drafts and moisture from seeping into the engine bay and passenger area, contributing to a more comfortable ride and preserved interior components.
• For detailed underhood display or showroom setups, the plug helps maintain a clean, uninterrupted firewall line above the clutch linkage, enhancing overall authenticity.

Installation tips

• Prepare the firewall opening by cleaning any dust or old sealant for optimal contact.
• Align the plug with the original opening above the clutch pushrod area and apply even pressure to seat it fully.
• Verify the plug sits flush with the firewall surface to ensure a clean appearance and effective sealing.
• No additional fasteners or modifications are required for a directfit replacement when transitioning from a worn or missing plug.

Compatibility and specifications

Fits 1963–1967 Chevrolet Corvette (C2 MidYear) models equipped with a 4speed manual transmission. Location: firewall above the clutch linkage area. Material varies by manufacturer, typically durable plastic or rubber. Quantity: sold individually.