Also seeking OEM Knuckle cases, Text Zeke, at 719.651.8011. The following item is for Sale. One super nice OEM, early pre war big port front Knucklehead cylinder head, complete, with no structural damage, chipped fins, broken mounts, welds or repairs. Great period survivor, has fantastic patina to run as is or restore. Solid, original condition find for a restoration or your preference. The item “OEM early large port Knucklehead cylinder head, complete, no damage or repairs” is in sale since Wednesday, August 11, 2021. This item is in the category “eBay Motors\Parts & Accessories\Motorcycle Parts\Antique, Vintage, Historic”. The seller is “trustinrust” and is located in Colorado Springs, Colorado. This item can be shipped worldwide.