Duncan racing quadzilla LT-R450: DUNCAN RACING SHOOTOUT: Although the LT-R450 worked nearly flawless in every way in the dunes, the older two-stroke Quadzilla was never far behind. Danny Franco was happy to explain why he contracted Duncan Racing International to get his 1987 Suzuki LT500R “Quadzilla” Quadracer PTR LT 500 Pipes are Now Available. Install the Pyramid Reed Valve and your engine will have better throttle response, stronger midrange and increased top end power. Nov 20, 2015 · Duncan Racing enlarged all the greatness the Quadzilla is known for and removed its rough edges and weak points. #1 Porting Modifications for LT 500, Best Horsepower, Maximize Performance, Top Power Gain, Professionaliy Ported by Loren Duncan, Race Proven Worldwide, 100% Quaranteed , Unlimited TECH Support, Billet Powerhead and Pyramid Reed Valve available to Match Porting Nov 4, 2025 · Machine: Duncan Racing Suzuki QUADZILLA LT500R Location: Glamis Sand Dunes Rider: Brian Radovich Photo Credit: Jeff Henson Includes: PTR Pipe, Fat Boy 2 Silencer, ELIMINATOR Porting, Powerhead, Pyramid Reed Valves, Pre-Jetted Keihin 39mm PWK Carburetor, Jet Kit, K&N Filter, T-Shirt, Instructions, DR Tech Support. Dec 20, 2022 · Duncan Racing helps a man dream By the staff of Dirt Wheels, Photos by Pat Carrigan Pro ATV racer Josh Row was playing like a loon on Danny Franco’s Duncan Racing-modified Suzuki LT500R. 🔥 Full story Sep 20, 2022 · Duncan Racing complete build Quadzilla Suzuki LT500Shot by: Pat CarriganWhere: Glamis Sand DunesView Article here:Duncan Racing Full Build Franco-SUZ LT 500 Jul 3, 2017 · Duncan Racing had been in business for 10 years when the LT-500R arrived on the scene. welcome to duncan racing! Duncan Racing is more than just a high-performance ATV company, we are a family with a deep history and reputation build on hard work, dedication, commitment, experience and integrity. Aug 8, 2023 · A Duncan Racing International, Inc. This isn’t a rebuild… it’s a resurrection of raw power built to dominate the dunes and leave everything else in its dust. We take pride in building the best and most reliable products on the market, while maintaining personal customer service and technical advice that has brought customers back for over 47 ⚡ DUNCAN RACING’S QUADZILLA UNLEASHED ⚡ The LT500R was never meant to play nice—and Duncan Racing just turned it into a fire-breathing, two- stroke powerhouse. Oct 29, 2015 · Furthermore, Duncan can do crankshaft rebuilding, carb boring and flywheel mods. The DR LT500R is better than the legend ever was. com. A lot has been done to this. Suzuki was the inventor of the T-shaped seat. Updated design features a CNC machined, steel exhaust flange with dual O-rings to enhance the seal at the spigot. Aug 15, 2025 · DUNCAN RACING QUADZILLA LT500R Two-stroke thunder! Story and photos by Jeff Henson Draped in Duncan Racing graphics and high-end hardware, this Quadzilla is pure attitude. Duncan Racing International, Inc. The Header on the New Generation PTR pipe has a CNC machined A suzuki lt500 quadzilla 562cc racing quadzilla headgasket replacement startup. Oct 20, 2019 · QUADZILLA vs. Its stance says vintage, but everything underneath screams modern-day muscle and purpose-built perfection. customer chose to unite two legends—Duncan Racing and a 1987 Suzuki LT-500R QuadRacer. Currently OUT OF STOCK working on manufacturing more- Summer ‘24 ETA Part # PH-2500 Suzuki LT 500R Powerhead (88-90 model) $399. Fits Suzuki LT 500 88-90 Model (7 head studs) Replacement Parts Part # PH-250D- Dome each (49cc-62cc) $99. It is now standard on the Yamaha 450. 95 Kit includes Head shell and dome. Guaranteed BEST LT 500 Pipe available. . 00 Information Required when ordering: Type of Fuel Piston Size Are cylinders ported or stock? If ported need exhaust port Pyramid Reed Valves are a proprietary product of Duncan Racing International, Inc. Suzuki sold the 500 QuadRacer for four years, but Duncan Racing is celebrating its 40th year in the ATV Industry. And in some cases, we liked it better. Details Accessories Related Products Reviews Suzuki LT500 Quadzilla QuadRacer DR Front Bumpers are hand fabricated to be the nicest steel bumper on the market today. So, what drives a man to spend the time and money it takes to bring a 30-year-old sport quad to this level of perfection in looks and performance? Draped in Duncan Racing graphics and high-end hardware, this Quadzilla is pure attitude. South Texas Banshee wiring harness, Ricky Stater Stater, Duncan Racing graphics, 3 row aluminum radiator, and many other OEM Suzuki parts. If you want some help getting your old two-stroke looking and running as good as the Quadzilla here, give Duncan Racing a call at (619) 258-6306 or visit www. It was throwing sand in all directions and throwing itself in the air. Power Curve: Midrange/Top End Power Emphasis Performance: 55-65% Upgrade over stock R Sep 27, 2021 · If you only need to reinforce the rear, professional outfitters like Duncan Racing can fabricate a chrome-plated +2 Laeger swingarm for the 500-cc Quadzilla for approximately $1,000. Unique 4-Sided design offers a power gain at all RPM ranges. duncanracing. Call the Duncan Racing sales desk #619-258-6306. zyamqc vvpspy cou qtml jzca vvmnu btdzkuj ykl xyrx dokjo ofqdjn ols ecssjxhc thu crxaql