{"product_id":"moroso-bbc-mark-iv-8in-deep-stroker-oil-pan-w-sump-tray","title":"Moroso 20404 Stroker Steel Oil Pan w\/Sump Tray for Chevy Big Block Mark IV 8 In","description":"\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eChevrolet Big Block Mark IV (396, 402, 427, 454) - fits most GM chassis with two-piece rear main seal\u003c\/li\u003e \u003cli\u003eCompatible with most GM A-body, B-body, and full-size chassis applications using Mark IV BBC engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment Notes\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eDesigned for Mark IV style Big Block Chevy engines only - does not fit Gen V or Gen VI BBC blocks.\u003c\/li\u003e \u003cli\u003eDoes not fit 1962-1967 Chevy II with V8 engine.\u003c\/li\u003e \u003cli\u003eDoes not fit V8 Vega or V8 Monza.\u003c\/li\u003e \u003cli\u003eDoes not fit 1955-1957 Tri-Five Chevrolet models.\u003c\/li\u003e \u003cli\u003eSome chassis may require crossmember modification - verify ground clearance before installation.\u003c\/li\u003e \u003cli\u003eRecommended oil pump pickup: Moroso No. 24440 (fits Moroso BBC Race Pumps Nos. 22149, 22150, 22159, 22160, 22162, or M77\/M77HV style pump).\u003c\/li\u003e \u003cli\u003eUses stock dipstick location.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eStroker-clearanced design accepts up to 4.25-inch stroke with steel rods and 4.090-inch stroke with aluminum rods.\u003c\/li\u003e \u003cli\u003eIntegrated trap door and anti-slosh baffle maintain consistent oil coverage at the pickup under acceleration and deceleration.\u003c\/li\u003e \u003cli\u003eFlat-sided sump design provides increased header clearance, reducing fitment conflicts with aftermarket exhaust.\u003c\/li\u003e \u003cli\u003eInternal sump tray included for additional oil control and reduced aeration.\u003c\/li\u003e \u003cli\u003e8-inch deep rear sump increases oil capacity over stock without sacrificing ground clearance.\u003c\/li\u003e \u003cli\u003eBlack powder coat finish for corrosion resistance and clean appearance.\u003c\/li\u003e \u003cli\u003eCompatible with most starter and flywheel combinations.\u003c\/li\u003e \u003cli\u003eUses standard two-piece rear main seal block configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003ePart Number: 20404\u003c\/li\u003e \u003cli\u003eMaterial: Steel, Black Powder Coat\u003c\/li\u003e \u003cli\u003eSump Style: Wet Sump, Rear T-Sump with Internal Sump Tray\u003c\/li\u003e \u003cli\u003ePan Depth: 8 inches\u003c\/li\u003e \u003cli\u003eSump Length: 10 inches\u003c\/li\u003e \u003cli\u003eOil Capacity: 7 quarts (not including filter)\u003c\/li\u003e \u003cli\u003eMax Stroke (Steel Rods): 4.25 inches\u003c\/li\u003e \u003cli\u003eMax Stroke (Aluminum Rods): 4.090 inches\u003c\/li\u003e \u003cli\u003eRear Main Seal Style: Two-piece\u003c\/li\u003e \u003cli\u003eEngine Application: Chevrolet Big Block Mark IV (two-piece rear main seal)\u003c\/li\u003e \u003cli\u003eDrain Plug Thread Size: 1\/2-20\u003c\/li\u003e \u003cli\u003eRecommended Pickup: Moroso No. 24440\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1x Moroso 20404 Steel Stroker Oil Pan\u003c\/li\u003e \u003cli\u003e1x Internal Sump Tray\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003eThe Moroso 20404 is a stroker-clearanced steel oil pan built for Mark IV Big Block Chevy engines running two-piece rear main seals. The 8-inch deep, 10-inch long rear T-sump holds 7 quarts and accommodates crankshaft strokes up to 4.25 inches with steel rods or 4.090 inches with aluminum rods - making it well-suited for built and stroked BBC applications. An integrated trap door and anti-slosh baffle keep oil at the pickup through hard acceleration and deceleration, while the included internal sump tray further controls oil movement and reduces aeration.\u003c\/p\u003e\u003cp\u003eA key distinguishing feature of the 20404 is its flat-sided sump design, which increases clearance between the pan and exhaust headers - a practical advantage on builds where aftermarket long-tube headers are installed. The black powder coat finish provides durable corrosion resistance. The pan fits most GM chassis running Mark IV BBC engines but does not fit 1962-1967 Chevy II V8, V8 Vega\/Monza, 1955-1957 Tri-Five Chevrolet, or Gen V\/VI blocks. Some installations may require minor crossmember modification; verify ground clearance before ordering. Use Moroso pickup No. 24440 for proper fitment with BBC race-style oil pumps.\u003c\/p\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":53483652481343,"sku":"MOR20404","price":404.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/18d44d027304778952f0457e0259127bL.jpg?v=1780207377","url":"https:\/\/wcaperformance.com\/products\/moroso-bbc-mark-iv-8in-deep-stroker-oil-pan-w-sump-tray","provider":"WCA Performance","version":"1.0","type":"link"}