Dual plugging early sportster heads

This video details advanced motorcycle engine rebuild and modification techniques, focusing on Shovelhead engines. Dragonman, an experienced mechanic and business owner, explains flywheel lightening for higher RPMs, dual spark plug head modifications, and camshaft lift considerations. The content highlights the shop's capability to perform comprehensive engine services, including pricing for basic rebuilds to fully tuned assemblies.

This video showcases various specialized machines and techniques used by Dragonman for intricate Harley-Davidson engine modifications. It details processes like cutting down cylinders for compression adjustments, shaving flywheels for faster acceleration, repairing cracked engine cases with custom-fit sections, and performing dual spark plug installations. The instructor demonstrates precise machining for valve seats, connecting rod rebuilding, and cylinder honing, highlighting the efficiency and accuracy of his workshop equipment.

This video demonstrates a specialized machining process to install dual spark plugs into Holley heads, a modification aimed at improving fuel combustion efficiency. The presenter, Dragonman, details the steps involved in precisely milling a new seat for a 9/16-14 millimeter spark plug, drilling the hole, and tapping the threads. This technique is presented as a solution for engines running on high-methanol fuels that can lead to carbon buildup.

This video demonstrates an advanced gunsmithing technique for machining a dual spark plug hole into a Harley-Davidson Shovelhead cylinder head using a milling machine. The process involves precise alignment, controlled milling with an end mill, drilling, chamfering, and finally, tapping the new thread. The instructor emphasizes the need for practice and careful pressure application during threading to avoid damaging the head or the tap. The modification aims to improve combustion efficiency.

This guide details critical steps for rebuilding Harley-Davidson Evolution engines, focusing on common pitfalls. It covers correctly installing cam covers by matching pinion shaft bushings to the correct model year to ensure proper oiling of connecting rods. The guide also provides detailed instructions on bleeding and adjusting hydraulic lifters, emphasizing the importance of an oil-free lifter for accurate adjustment and preventing valve damage. Additionally, it addresses spark plug selection for dual-plugged engines and correct head gasket and piston orientation for Sportsters.

Dragonman details his comprehensive Harley Davidson engine and transmission rebuilding services, covering work from 1936 to 1999. He highlights the process of rebuilding lower ends, transmissions, heads, and cylinders, emphasizing the use of quality components like nickel alloy valve seats and Hastings rings. The video showcases pricing for various service levels, from individual component rebuilds to full engine packages, and provides contact information for mail-order services.

This guide details the process of loading belt-fed machine gun ammunition using a vintage WWII .50 caliber linking machine, as demonstrated by Dragonman at the Dragon Arms Museum. It covers the manual steps of aligning links and cartridges and securing them with the machine's lever. The video highlights Dragonman's expertise with historical military equipment and large-scale ammo preparation.

Dragonman's Gun Store received a massive delivery of firearms and ammunition. The video highlights various handguns like the Ruger 57, FN 509, Glock 19X, and M&P Shield EZ, alongside AR-15 style rifles including the Smith & Wesson M&P 15 and Ruger AR-556. A 12-gauge bullpup shotgun and optics like the Sig Sauer Romeo 3 are also featured. The store emphasizes its wide ammunition inventory and compliance with Colorado's magazine capacity laws.

This guide outlines a home defense strategy emphasizing immediate firearm accessibility, as demonstrated by Dragonman, a Class III Dealer with high expertise in NFA firearms. It covers the strategic placement of various firearms, including handguns, shotguns, and heavy machine guns, within the home for rapid deployment. The content also includes a strong recommendation against using traditional gun safes for home defense due to access time concerns, highlighting the importance of readiness in critical situations.

This entry details the process of manufacturing and testing machine guns, as demonstrated by Dragonman. It covers essential steps from using specific receivers and complying with ATF regulations, including licensing and registration, to live fire testing of various full-auto firearms like the M16, AK-47, and M2 Browning. The guide emphasizes the importance of proper marking and adherence to legal requirements for firearm production.