Cometic Extreme Sealing Motor Gasket Kit - 3.500" Bore - C9891

Upgrade your 84-91 Big Twin engine with the Cometic Extreme Sealing Gasket Kit, engineered for superior sealing and long-lasting performance. This comprehensive motorcycle gasket kit provides all necessary components for a reliable engine rebuild, utilizing Cometic's renowned quality materials.

Description

Designed specifically for 1984-1991 Harley-Davidson Big Twin engines, this Cometic gasket kit ensures optimal engine integrity. Each component in this extreme sealing technology motor gasket kit is meticulously crafted from the best possible material for its intended application, guaranteeing a leak-free and robust assembly. The inclusion of Multi-Layer Steel (MLS) head gaskets provides exceptional durability and sealing capabilities, crucial for maintaining high compression and power output. Complementing this, the steel Viton®-coated base gaskets offer superior resistance to heat and chemicals, preventing common oil leaks. Riders performing a Big Twin engine rebuild will appreciate the precision and quality, making this Cometic C9891 gasket kit an essential choice. Furthermore, blue Viton® valve stem seals effectively control oil consumption and maintain valve train efficiency, while Aluminum Foam Material (AFM) race-style exhaust gaskets withstand intense exhaust temperatures and vibrations. Manufactured in the USA, this Cometic gasket set reflects a commitment to premium quality and performance for your classic Harley-Davidson.

Features & Highlights

• Advanced Sealing Technology: Achieve optimal cylinder sealing with robust Multi-Layer Steel (MLS) head gaskets, designed for exceptional durability and high-performance applications.
• Leak-Proof Base Gaskets: Prevent leaks and ensure a tight seal at the cylinder base with steel Viton®-coated base gaskets, offering excellent resistance to oils, fuels, and chemicals.
• Optimized Oil Control: Maintain proper oil consumption and reduce emissions with high-quality blue Viton® valve stem seals, engineered for superior heat and chemical resistance.
• High-Performance Exhaust Sealing: Experience reliable exhaust sealing with Aluminum Foam Material (AFM) race-style exhaust gaskets, built to withstand extreme temperatures and vibrations.
• American Craftsmanship: Trust in precision manufacturing and premium materials, as every component of this Cometic gasket kit is proudly Made in the USA.

Technical Specifications

• Product Type: Motor Gasket Kit
• Fitment: For 1984-1991 Harley-Davidson Big Twin engines
• Bore Size: 3.500"
• Materials: Multi-Layer Steel (MLS), Viton®-coated Steel, Aluminum Foam Material (AFM)
• Cometic Part Number: C9891
• Units: 1 Kit