fits model: Knucklehead. make: Harley. year: 1940–1947.

( Brand: Harley-davidson ), ( Manufacturer Part Number: 16700-40 ), ( Part Type: Cylinder Head ), ( Placement On Vehicle: Rear ), ( Surface Finish: Light Surface Rust ), ( Country/region Of Manufacture: United States )
The 16700-40 Harley-Davidson Knucklehead Rear Cylinder Head is an authentic OEM replacement part for Harley-Davidson motorcycles manufactured between 1940 and 1947. This component is a crucial part of the engine, responsible for housing the valves and facilitating the intake and exhaust strokes of the engine cycle.
This Harley-Davidson Knucklehead Rear Cylinder Head is made of high-quality material, ensuring durability and reliability. It features the iconic knucklehead design, with its distinctive "knuckle" shape at the intake port, which earned the engine its name. The cylinder head is precision-machined to ensure a perfect fit and optimal engine performance.
The 16700-40 Harley-Davidson Knucklehead Rear Cylinder Head comes with new valves and valve guides, ensuring a smooth and efficient engine operation. It also includes new valve springs and retainers, ensuring the proper sealing of the valves and preventing leakage. The cylinder head is also equipped with new exhaust valves and seats, ensuring optimal exhaust flow and reducing the risk of backfiring.
Installing this Harley-Davidson Knucklehead Rear Cylinder Head is a straightforward process, thanks to its easy-to-follow installation instructions. The cylinder head comes with all the necessary hardware, including new bolts and gaskets, making it a complete, hassle-free replacement part.
In conclusion, the 16700-40 Harley-Davidson Knucklehead Rear Cylinder Head is a high-quality replacement part for your classic Harley-Davidson motorcycle. It is precision-engineered to ensure optimal engine performance and is backed by Harley-Davidson's reputation for quality and reliability. Whether you're restoring a classic Harley-Davidson or maintaining your daily rider, this cylinder head is a must-have part for any Harley-Davidson enthusiast.
Pros of buying a 1940-1947 Harley-Davidson Knucklehead rear cylinder head (Part Number: 16700-40) new old stock (NOS):1. Authenticity: NOS parts are original and have not been used or modified, ensuring the preservation of the motorcycle's originality and historical value.
2. Quality: Manufactured using the same materials and manufacturing processes as the original parts, NOS parts often provide better quality and durability compared to modern aftermarket alternatives.
3. Fit and Function: NOS parts are designed to fit and function with the rest of the motorcycle's components, ensuring a seamless integration and minimizing the risk of compatibility issues.
4. Availability: NOS parts are often hard to find, and buying a NOS rear cylinder head can be a great opportunity to secure a rare and valuable part for your classic Harley-Davidson.
Cons of buying a 1940-1947 Harley-Davidson Knucklehead rear cylinder head (Part Number: 16700-40) new old stock (NOS):1. Cost: NOS parts are often more expensive than modern aftermarket alternatives, due to their rarity and the cost of manufacturing and storing them for such a long time.
2. Availability: While NOS parts can be valuable and hard to find, they may not always be available for a specific motorcycle model or year, which can limit your options if you need to replace a damaged or worn-out part.
3. Limited Options: NOS parts may not offer the same range of options as modern aftermarket parts, such as different finishes, materials, or performance upgrades.
4. Limited Warranty: NOS parts typically do not come with a warranty, which can be a concern if the part fails or does not fit properly.
Conclusion: Buying a 1940-1947 Harley-Davidson Knucklehead rear cylinder head (Part Number: 16700-40) new old stock (NOS) can be a great investment for classic Harley-Davidson owners who value originality and quality. However, the high cost and limited availability of NOS parts can be a downside, and it is important to carefully consider your options before making a purchase. If you are looking for a replacement part for your Harley-Davidson and are not concerned about originality, modern aftermarket parts may be a more cost-effective and readily available option.
Recommendation: If you are looking for a replacement rear cylinder head for your classic Harley-Davidson and value originality and quality, consider buying a 1940-1947 Harley-Davidson Knucklehead rear cylinder head (Part Number: 16700-40) new old stock (NOS). However, carefully consider the cost and availability of NOS parts, and weigh your options against modern aftermarket alternatives to ensure that you are making the best decision for your motorcycle and budget.
New old stock that's right, this rear head is brand freaking. Excellent condition.