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Home 1984-1999 Harley-Davidson Big Twin Big Bore Top End Gasket Kit - Teflon & Carbon
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1984-1999 Harley-Davidson Big Twin Big Bore Top End Gasket Kit - Teflon & Carbon

$79.72
Prices are in USD. Shipping calculated at checkout.
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🔍 Fitment Verified
🛡️ Warranty Included
↩️ 30-Day Returns

This big bore top end gasket kit is designed to provide a comprehensive sealing solution for Harley-Davidson Evolution engines during a top end overhaul. The kit includes both Teflon and carbon head gaskets along with NBR rubber-coated steel base gaskets to ensure a secure seal for increased cylinder bores. Each component is manufactured to strict tolerances to provide a reliable fit and long-term protection against leaks in high-performance applications.

This kit fits 1984-1999 Harley-Davidson Softail, Dyna, and Touring models, including Evolution Big Twin and early Twin Cam applications.

What's Included in this Kit

BIG TWIN SUB KIT
× 1
Seal, Intake Manifold
2699586B - Rubber
× 2
Carburetor Gaskets Touring, FX, Sportster & FXR
2905877FM - Foamet
× 1
Carburetor Gaskets Sportster, Touring, Softail & Dyna
2905988 - Interface
× 1
O-ring, Cylinder Head Locating, Use with Evo® Head Gaskets
2643276A - Rubber
× 4
Gasket, Exhaust Pipe to Cylinder Head, Flat Style
6532483M - Steel
× 2
Seal, Carburetor to Manifold
2700289 - Rubber
× 1
Valve Stem Seal Touring, Softail, Dyna & Trike
VSHA2V - FKM Rubber - 5/16 Stem / .420 Guide
× 4
Cylinder Base Gasket. Evolution 3-5/8 Big Bore Gasket
9730 - NBR Rubber Coated Single Steel
× 2
Cylinder Base Gasket. Evolution 3-13/16 Big Bore Gasket
9731 - NBR Rubber Coated Single Layer Steel
× 2
Big Bore Big Twin Head Gasket
GBTBBCAR - Carbon
× 2
Head Gasket Softail, Touring & Dyna
GBTBBTEF - Teflon
× 2
RBKEVOE
× 1
RBK SUB KIT
× 1
Rocker Base Gasket Fits Big Twin & Sportster
1680084 - Single Layer Steel
× 2
Gasket, Rocker Cover, Lower
1735584A - Rubber
× 2
Gasket, Rocker Cover, Upper
1735684A - Rubber
× 2
Gasket, Rocker Cover, Center
1735884A - Rubber
× 2
Gasket, Rocker Cover, Lower
1735592 - Rubber
× 2
Gasket, Rocker Cover, Upper
1735692 - Rubber
× 2

All items shipped together in one package.

Weight
0.708000
Parts Type
Top-End Gasket Kit
Sold As
Kit
Application Type
Stock Replacement
Material
Multi (Kit)
Head Gasket Thickness:
.075" (Uncompressed)
Head Gasket Bore Size
3.625" - Big Bore

Compatible Models

41 Fits
Softail 1984–1999 11 models
Touring 1984–1999 20 models
Dyna 1991–1999 10 models

⚠ Always verify fitment before ordering.