James Gaskets Inc Top End Gasket Kit Big Twin 1966-1984 3-5/8in. JGI-17034-78-S
$190.12
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James Gaskets Inc Top End Gasket Kit Big Twin 1966-1984 3-5/8in. JGI-17034-78-S
$190.12
This premium top end gasket kit is engineered for Harley-Davidson Big Twin Shovelhead engines from 1966 to 1984 equipped with a 3-5/8 inch big bore. Manufactured in the USA, it provides all the necessary components for a comprehensive and dependable top-end rebuild.
The kit features durable 1.1 mm Teflon head gaskets for superior scuff resistance alongside advanced Rubber Covered Metal (RCM) base and rocker cover gaskets. These advanced materials provide exceptional sealing, optimal torque retention, and reliable leak protection under extreme operating temperatures.
Key Features
| Manufacturer Part Number | JGI-17034-78-S |
| Brand | James Gaskets Inc |
| Product Type | Top End Gasket Kit |
| Engine Compatibility | Harley-Davidson Big Twin Shovelhead (1966-1984) |
| Bore Size | 3-5/8 in. |
| Head Gasket Material | Teflon (PTFE) |
| Head Gasket Thickness | 1.1 mm |
| Base & Rocker Gasket Material | Rubber Covered Metal (RCM) |
| Country of Origin | USA |
Highlights
- Complete top-end gasket solution for 3-5/8 in. Shovelhead engines
- Includes 1.1 mm Teflon (PTFE) coated head gaskets
- RCM (Rubber Covered Metal) cylinder base and rocker cover gaskets for maximum torque retention
- Engineered and manufactured in the USA
Compatibility
Fits Harley-Davidson Big Twin Shovelhead engines from 1966 to 1984 equipped with 3-5/8 in. bore cylinders.
What's included
- Teflon 1.1 mm Head Gaskets
- RCM Cylinder Base Gaskets
- RCM Rocker Cover Gaskets
- All required top-end seals and O-rings
Frequently asked questions
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