Twisted Choppers Exhaust Head Tube Flange for 1957-1985 Harley-Davidson Ironhead
Ironhead Sportsters respond to every detail of a custom exhaust build, starting with a head tube that fits the port correctly. This Twisted Choppers one-piece formed head tube is made specifically for 1957-1985 Ironhead Harley-Davidson engines, giving fabricators a precise, clean-fitting starting point for custom pipes that connect to the Ironhead port exactly as designed.
Key Features
- One-piece formed head tube designed for 1957-1985 Ironhead Harley-Davidson engines
- 1.75-inch OD cold rolled steel tubing
- Formed end: 1.875-inch OD x 1.75-inch ID x .75-inch long
- Overall length: 4.5 inches
- Sold as a pair; flange clamps not included
- Made in the USA
Technical Specifications
- Tube OD: 1.75 inch
- Formed end OD: 1.875 inch
- Formed end ID: 1.75 inch
- Formed end length: .75 inch
- Overall length: 4.5 inch
- Material: Cold rolled steel
- Qty: Sold as a pair
Fitment Notes
- Fits 1957-1985 Ironhead Harley-Davidson Sportster engines
- Flange clamps are not included; order separately
- For fabrication use; requires welding







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