{"product_id":"texas-speed-iron-383-c-i-d-long-block-tsp-383lbstd-3","title":"Texas Speed Iron 383 C.I.D. Long Block\n - TSP-383LBSTD-3","description":"\u003cdiv\u003eTSP Iron 383 LS Long Block\u003c\/div\u003e\n\u003cdiv\u003eThe TSP Iron 383 LS Long Block is a proven high-performance foundation designed to deliver exceptional power and reliability. Built in-house by Texas Speed, this long block includes our forged 383 short block base paired with Brawler LS6 Cylinder Heads, Johnson Lifters, and the legendary TSP Tsunami Camshaft. Ideal for naturally aspirated applications, this setup offers crisp throttle response and the durability expected from a TSP-built engine.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eIncluded Components\u003c\/div\u003e\n\u003cdiv\u003eTSP 4340 Forged 4.000” Crankshaft – Precision-balanced for strength and smooth operation.\u003c\/div\u003e\n\u003cdiv\u003eTSP Forged H-Beam Connecting Rods – Engineered for maximum durability in high-stress conditions.\u003c\/div\u003e\n\u003cdiv\u003eWiseco -3cc Forged Pistons – Produces an 11.2–11.3:1 compression ratio for strong naturally aspirated performance.\u003c\/div\u003e\n\u003cdiv\u003eTSP Brawler LS6 CNC-Ported Cylinder Heads – Premium cathedral-port heads offering excellent airflow and velocity.\u003c\/div\u003e\n\u003cdiv\u003eTSP Tsunami Camshaft – 235\/240 duration, .629\"\/.615\" lift, 111 LSA for a wide powerband and aggressive sound.\u003c\/div\u003e\n\u003cdiv\u003eJohnson Hydraulic Lifters – Proven reliability and performance for street or race use.\u003c\/div\u003e\n\u003cdiv\u003eJP Performance Timing Set – High-quality timing assembly ensuring precise valve timing and durability.\u003c\/div\u003e\n\u003cdiv\u003eGM Head Bolts – OEM-style fasteners for proper sealing and torque retention.\u003c\/div\u003e\n\u003cdiv\u003ePerformance Specifications\u003c\/div\u003e\n\u003cdiv\u003eDisplacement: 383 cubic inches (6.3L)\u003c\/div\u003e\n\u003cdiv\u003eCompression Ratio: 11.2–11.3:1\u003c\/div\u003e\n\u003cdiv\u003eBlock Type: Gen IV LS Iron Block\u003c\/div\u003e\n\u003cdiv\u003eCrank Reluctor Wheel: 58x\u003c\/div\u003e\n\u003cdiv\u003eBottom-End Strength: 1000 HP Capable\u003c\/div\u003e\n\u003cdiv\u003eAdditional Details\u003c\/div\u003e\n\u003cdiv\u003eIncludes 12 Quarts of TSP Break-In Oil for initial startup and break-in.\u003c\/div\u003e\n\u003cdiv\u003eCamshaft is degreed in-house to ensure proper valve timing.\u003c\/div\u003e\n\u003cdiv\u003eCylinder heads, cam, lifters, and timing set preinstalled — ready for your intake, front cover, and accessories.\u003c\/div\u003e\n\u003cdiv\u003e58x reluctor wheel included. For 24x applications, use Lingenfelter Conversion Box #L460065397.\u003c\/div\u003e\n\u003cdiv\u003eIn stock and ready to ship — built, balanced, and blueprinted by Texas Speed.\u003c\/div\u003e","brand":"Texas Speed","offers":[{"title":"Default Title","offer_id":48150692331778,"sku":"TSP-383LBSTD-3","price":9999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/26862.jpg?v=1785028709","url":"https:\/\/www.lethalperformance.com\/products\/texas-speed-iron-383-c-i-d-long-block-tsp-383lbstd-3","provider":"Lethal Performance","version":"1.0","type":"link"}