You are buying a well running, all original 1972 911S 2.4 liter 911/53 MFI engine. The engine had been sitting for many, many years in a shop in California, after the injection pump developed a problem. We purchased it quite a long time ago and finally got around to making it run excellent. The MFI injection pump needed refurbished as the rack and a couple of pistons were stuck. We went through the injection pump and it it in excellent shape now. We rebuilt the chain tensioners and added safety guards, changed the oil return tube seals, straightened the valve and sump covers and put in updated silicon gaskets, changed a bunch of seals like the pulley seal, did a quick valve adjustment and test ran the engine and did some quick fine-tune adjustments. Please find our video of the engine running on our famouns Gulf engine test stand on You..Tube: Test Run after revival: 1972 Porsche 911S engine #6320890 Test Run after revival: 1972 Porsche 911S engine #6320890 – YouTube Video will open in a new window Using the eBay App? Paste link into a browser window: [isdntekvideo] The engine comes exactly as shown hanging on the engine stand in this listing. When being tested on the Gulf engine test stand, a muffler with air/fuel ratio wide band sensors for each bank is used to be able to adjust the engine. The engine comes as shown on the engine stand in the photos provided in this listing. Please check out the photos in detail, we always take a bunch of them. Shipping and handling is a flat rate of $769 to the lower 48 continental States.Please inquire about international shipping rates. We have shipped a lot of engines all over the world. Please check out my store for many rare and special Porsche parts. All items sold as is. Payment must be received within 7 calendar days. PA residents pay 6% sales tax. Items will ship after payment has cleared. We can no longer accept returns due to eBay refunding customers for returning worn, damaged and broken parts and components. All customers are responsible for fit and compatibility of all items sold.