Harddrive Intake Manifold - Keihin CV Carburetor - Harley Evolution
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
Optimize your Evolution-powered Harley's air-fuel delivery with this Harddrive intake manifold. Engineered with a smooth, ported design, it's a direct OEM-style replacement for stock manifolds, ensuring proper fitment and performance with Keihin CV carburetors.
Why riders pick this
- OEM-style replacement for Evolution engines
- Smooth ported design for improved airflow
- Compatible with Keihin CV carburetors
- Restores proper air-fuel delivery
- Essential for preventing intake leaks
A properly sealed and free-flowing intake manifold is crucial for your V-twin's performance. This Harddrive intake manifold is designed to match the original specifications, preventing air leaks and ensuring your Keihin CV carburetor can deliver fuel efficiently. It's an ideal choice whether you're replacing a damaged manifold or upgrading an older, less efficient unit to restore optimal engine function.
Engineered for Optimal Airflow
- OEM-style replacement with a smooth, ported design
- Ensures proper air-fuel mixture for Keihin CV carburetors
- Direct fit for Evolution V-twin engines
- Restores efficient fuel delivery and engine response
Installation Best Practices
For the best results and to prevent vacuum leaks, Harddrive recommends replacing your intake flanges and seals (sold separately) when installing this new manifold. This ensures a tight, leak-free seal between the manifold, cylinder heads, and carburetor. This manifold is a straightforward upgrade for any Evolution rider looking to maintain or improve their carbureted setup.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 86266
- UPC: 191361356117
- Length: 5 in
- Width: 2 in
- Height: 4 in
- Weight: 0.5 lbs
- Country of Origin: Japan
Common questions
Do I need new intake seals when I install this manifold?
Yes, Harddrive strongly recommends replacing the intake flanges and seals (sold separately) during installation. This helps ensure a proper, leak-free seal and prevents potential air leaks that can affect engine performance.
Will this intake manifold work with an aftermarket carburetor?
This intake manifold is designed specifically for use with the OEM Keihin CV carburetor. If you have upgraded to an aftermarket carburetor, please verify its compatibility with this manifold before ordering.
What engine platform is this manifold designed for?
This Harddrive intake manifold is designed for Evolution V-twin engines found in various Harley-Davidson models from 1988-1999, specifically those utilizing a Keihin CV carburetor.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Harddrive |
| TYPE | Intake/Carb/Fuel System |
| SKU | 820-51510 |
| WEIGHT | 0.5 lb |
