{"product_id":"p2p-racing-ej25-stage-2-short-block","title":"P2P Racing EJ25 Stage 2 Short Block","description":"\u003cp\u003e\u003cspan\u003eOur Stage 2 motor is a total workhorse. This engine has been proven time and time again on and off the track. We have countless race hours on these engines as well as millions of street miles that prove you can have the best of both worlds. We balance and blueprint everything in these engines. Each piston is within ½ gram of each other, the rods are within ½ gram of each other on both the big end and the total weight. Each crank is sent off for balancing and comes in less than 1 gram. The only difference between our stage 2 engine and our stage 4 engines are the internal parts. The time and resources spent on perfecting the clearances and balancing the rotating assembly is done on all of our engines.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"text-zinc-900 font-medium prose prose-zinc\"\u003eEngine Highlights\u003c\/h3\u003e\n\u003cdiv id=\"disclosure-1\" class=\"prose prose-sm pb-6\"\u003e\n\u003cdiv slot=\"highlights\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; color: black; mso-color-alt: windowtext;\"\u003eCore Charge of $500 is refunded for customer supplied case halves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for 26-28psi, 625BHP and 8,000rpm\u003c\/li\u003e\n\u003cli\u003eSeasoned OEM Closed Deck Inserted Case Halves with Pinned Mains bored out to 99.75mm and align honed to exacting dimensions.\n\u003cul\u003e\n\u003cli\u003eThe pistons are precisely measured and numbered for each bore. The bores are then honed to exactly the right size.\u003c\/li\u003e\n\u003cli\u003eWe also align hone the mains to be within 0.0001” of nominal spec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eCP 99.75mm Pistons\u003c\/li\u003e\n\u003cli\u003eManley H-Tuff Series Forged Rods or Callies Compstar Rods w\/ ARP2000 Rod bolts\u003c\/li\u003e\n\u003cli\u003eClevite Coated, ACL, or King Race Bearings for rods and mains.\u003c\/li\u003e\n\u003cli\u003eBrand New OEM Subaru Nitrided Crank\u003c\/li\u003e\n\u003cli\u003eBrand New OEM Subaru Case Bolts\u003c\/li\u003e\n\u003cli\u003eRear Cover, Oil Galley Plugs, and Wrist Pin Plugs come standard.\u003c\/li\u003e\n\u003cli\u003e1.20mm Headgasket Required. Tomei is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWhy Choose our Stage 2 Short Block Over the Competition?\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eAll machining, cleaning, and assembling are done by a degreed engineer. We provide a level of artisan craft in our engines only found in race teams and super cars. The experience we bring to our engine program is unparalleled in the industry. We blueprint the entire assembly of the motor to within .0002 of our specs,” Even though the H4 motor is inherently self- balancing, it is incredibly important to balance your motor to increase the life of your bearings. It is highly recommended to run a Fluidampr\/ATI crank pulley or OEM. Do not run an aftermarket solid crank pulley. All of our inspection equipment is high quality, either from Starrett or Mitutoyo, and is sent off yearly for calibration to a qualified cal-lab.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy do we use “Seasoned Cases for All Stage 2+ Short Blocks?\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eThis is a fascinating question in that it would seem that buying brand new cases would be best? Wrong! When new cases undergo racing extremes with temperature and stress, they tend to stress relieve or work harden. This may cause the deck surface to fluctuate or the main tunnels to change and get bigger or smaller (we are talking about 1\/10,000’ths of an inch 0.0001”). Seasoned cases or “used cases” have undergone these fluctuations from numerous hot\/cold cycles and millions of stress cycles. Because of this, we prefer to take these seasoned engines and re-machine them to our specifications, as they don’t change under loaded conditions. There are decades of research and thousands of white papers written on this phenomenon.\u003c\/p\u003e\n\u003cp\u003eBreak in Procedure is Found \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/5158\/6206\/files\/P2P_Racing_Engine_Break_In_Procedure.pdf?v=1760538965\" rel=\"noopener\" target=\"_blank\"\u003eHERE\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eWarranty Information is Found \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/5158\/6206\/files\/P2P_1_Year_Standard_Warranty_Disclosure.pdf?v=1760538965\" rel=\"noopener\" target=\"_blank\"\u003eHERE\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"P2P Racing","offers":[{"title":"Default Title","offer_id":46032229466270,"sku":null,"price":4799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/5158\/6206\/files\/IMG_1837.jpg?v=1759412477","url":"https:\/\/www.p2pracing.com\/products\/p2p-racing-ej25-stage-2-short-block","provider":"P2P Racing","version":"1.0","type":"link"}