The new stroke is 4-5/8 (4.625), or 13/16.8125 larger than the original stroke length. The new motor size is 54.7, or 897cc with std. This is only 1/16 longer stroke than the famous factory KH motor. I can also supply these flywheels in 4-7/16 (4.4375, 861cc) and 4-1/2 (4.500, 873cc) stroke.
This is not returnable if you make a mistake. This is a very reasonable investment - its only a small part of your total motor cost, and does more in one step than anything else - more than hot cams, bigger carburetor, etc.
Although those parts will work even better on your stroker motor. The new larger high-compression engine is less sensitive to big cams and carburetors, so you have more tuning options while retaining great low speed power. This is not a radical, dangerous and short-lived modification, motors have been built using this stroke length (and inferior parts) for 50 years. The motor will not explode, overheat, be difficult to start, or wear out immediately (the extra piston travel does shorten the time between top end rebuilds slightly, but were talking about years, not months). Yes, these are the same flywheels you have heard and read about.Victory is the largest volume reseller of 45 stroker flywheels. Because Im providing you with something extra that no one else does: a comprehensive illustrated booklet (over 7,000 words) with diagrams and dimensions to show you how to do this yourself, including lots of useful information to help talk you through the process of installing them. Doesnt another company make 45 stroker flywheels? » They use a different connecting rod set will not accept your stock 45 rods, crankpin &c. » The theoretical difference in strength between their forging and our heat-treated casting might be of use if the engine were producing over 100 hp. These flywheels are a direct replacement (except for stroke length) for the original flywheels in all 45 motors with the serial letters W, WL, WLA, WLC, WLD, WLDR, WR, G, GE & GA. 45 lower-end components, including your own rod set, crank-pin, shafts, bearings, etc. No special parts (other than pistons) are required for installation, and no welding or expensive machine work; this means that your project is less expensive. The flywheel material is far superior to the original factory cast-iron.
Every individually crafted flywheel begins as a 80-55-06 ductile (nodular) iron blank, which is then heat-treated to 220-250 BHN. The 80,000 pound tensile strength blanks undergo an exacting 20-step manufacturing process, utilizing both CNC and conventional precision milling and machining. This insures accurate surfaces, legendary reliability, and excellent truability, an absolute necessity when setting up high performance motors to blueprint specifications.
If properly installed and maintained, they will not wear out, but give many years of trouble-free service. Ductile cast-iron is the superior material for flywheels, since its surface provides a better grip on the crankpin and shaft tapers than a steel forging to prevent slippage. Cast-iron also damps out internal vibrations better than steel. This stroke length is perfect for use with 1954-56 KH cylinders and heads, since it allows std. K replica pistons to be used (no special pistons needed using these parts).
Although you cannot use stock 45 pistons with stroker flywheels, you can modify 45 or K-model pistons for use with these flywheels by simply shortening the skirts with a file, hacksaw, Dremel, etc. And using stroker plates; other modifications are required.
Victory does not supply pistons, modify pistons, or install these parts. This is more complex than a normal rebuild , requiring prior experience and other assembly work. Flywheels must be balanced to your components. ICTORY is the original source of side-valve performance since 1971. Foreign customers: I must have your telephone number.
See these Victory Library booklets. Attention: I cannot accept mney orders, postal orders or bank drafts from any foreign countries (Canada, Europe, Asia), only from U. The item "Harley-Davidson 45 Flathead Stroker Flywheels" is in sale since Monday, January 12, 2015. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Antique, Vintage, Historic". The seller is "kitabel" and is located in Wichita, Kansas.
This item can be shipped worldwide.