This is a New Muffler For the 6 – 8 Hp Size Alamo, Empire or Rock Island Hit & Miss Or Throttle Governed Gas Engines…. Using 2 Npt for the exhaust.. Please Look At the Pictures, Measure & Make sure this is the Muffler you Need……… Any questions Please Ask & I will Help You the best I can. This is All New, Made Out Of Cast Iron, Poured In A foundry, Professionally Drilled & Machined. Then Riveted together with 1/4 Rivets Like the Originals were…. They Are Ready To Put On Your Engine & Run!!! These are Approx 11″ in Dia, 6″ Wide, 2Npt……. They Have the Part Number 2000 On the front & 2001 On the Back Just As the Originals did!! These are By Far the Best Reproduction Mufflers Available for the Alamo Rock Island Empire Line of Engines. Made in the USA with US Iron!! So Don’t miss out on your opportunity to Complete that Empire – Flying Dutchman – Rock Island – Alamo or McVicker Engine with A Nice New Muffler!!! These can Be rusted Up For That Old Engine Or Painted to Match That Perfect Restoration, This is New.. This Item Weighs 16 LBS!! I will Do My Best To Box & Pack Everything, As I would want to receive it…… When You Receive your Item Please leave Positive feed Back As It will be Left For you & To Let Me Know it was received & You Are satisfied……. Don’t forget to Look At my other items. Or Be sure to add me to your favorites list. If You Have Any Questions Or Concerns About the Items I have listed And Prefer Not to Wait thru the. 1246 Us Hwy 63.