{"id":10341333106913,"title":"DART 31867212 LS Next SHP Pro Iron Engine Block 4.125 Bore 9.240 Deck Gen III LS","handle":"dart-31867212-ls-next-shp-pro-iron-engine-block-4-125-bore-9-240-deck-gen-iii-ls","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDART 31867212 LS Next SHP Pro Iron Block 4.125 Bore 9.240 Deck\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBuild your next high-performance LS engine on a stronger foundation with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDART 31867212 LS Next SHP Pro Iron Engine Block\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for serious street, strip, circle track, off-road, and marine performance builds, this Gen III LS-style block delivers the strength and reliability needed for high horsepower applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe DART \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLS Next SHP Pro\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e block features \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e220 BHN cast iron construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esteel 4-bolt main caps with upgraded ARP main studs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epriority main oiling\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esiamese cylinder bores\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ethick decks\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to help maintain head gasket sealing under demanding cylinder pressure. The block is also designed with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6-bolt per cylinder head capability\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efactory oil filter provision\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and clearance for center-counterweighted crankshafts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.125\" bore\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9.240\" deck height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDART 31867212\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is an excellent starting point for big-cube LS stroker combinations, boosted builds, nitrous engines, and high-compression naturally aspirated performance engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDART Machinery\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e31867212\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Line: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLS Next SHP Pro\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEngine Family: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eChevy \/ GM LS Gen III\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIron Engine Block\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBore Size: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.125 in.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDeck Height: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9.240 in.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMaterial: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e220 BHN Cast Iron\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMain Cap Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSteel\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMain Bearing Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eChevrolet LS\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCamshaft Location: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eStandard\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eLifter Bore: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.824 in.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRear Main Seal Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eStock\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFull skirt block design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePriority main oiling system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSiamese cylinder bores\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThick decks for improved head gasket sealing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e6-bolt per cylinder head capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory oil filter provision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eParts kit included, Dart PN \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e32000018\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eGTIN: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e00807051044072\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis item is shipped on a pallet, via Freight Truck Only - $300.00 Extra\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","published_at":"2026-10-05T15:47:28-05:00","created_at":"2026-10-05T15:47:27-05:00","vendor":"DART","type":"Engines, Bare Blocks","tags":[],"price":469999,"price_min":469999,"price_max":469999,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50749245587681,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"DRT31867212","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"DART 31867212 LS Next SHP Pro Iron Engine Block 4.125 Bore 9.240 Deck Gen III LS","public_title":null,"options":["Default Title"],"price":469999,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"807051044072","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.winnerscircle.com\/cdn\/shop\/files\/DART.png?v=1791233818"],"featured_image":"\/\/www.winnerscircle.com\/cdn\/shop\/files\/DART.png?v=1791233818","options":["Title"],"media":[{"alt":null,"id":46287812755681,"position":1,"preview_image":{"aspect_ratio":1.637,"height":2424,"width":3967,"src":"\/\/www.winnerscircle.com\/cdn\/shop\/files\/DART.png?v=1791233818"},"aspect_ratio":1.637,"height":2424,"media_type":"image","src":"\/\/www.winnerscircle.com\/cdn\/shop\/files\/DART.png?v=1791233818","width":3967}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDART 31867212 LS Next SHP Pro Iron Block 4.125 Bore 9.240 Deck\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBuild your next high-performance LS engine on a stronger foundation with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDART 31867212 LS Next SHP Pro Iron Engine Block\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for serious street, strip, circle track, off-road, and marine performance builds, this Gen III LS-style block delivers the strength and reliability needed for high horsepower applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe DART \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLS Next SHP Pro\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e block features \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e220 BHN cast iron construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esteel 4-bolt main caps with upgraded ARP main studs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epriority main oiling\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esiamese cylinder bores\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ethick decks\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to help maintain head gasket sealing under demanding cylinder pressure. The block is also designed with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6-bolt per cylinder head capability\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efactory oil filter provision\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and clearance for center-counterweighted crankshafts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.125\" bore\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9.240\" deck height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDART 31867212\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is an excellent starting point for big-cube LS stroker combinations, boosted builds, nitrous engines, and high-compression naturally aspirated performance engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDART Machinery\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e31867212\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Line: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLS Next SHP Pro\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEngine Family: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eChevy \/ GM LS Gen III\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIron Engine Block\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBore Size: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.125 in.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDeck Height: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9.240 in.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMaterial: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e220 BHN Cast Iron\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMain Cap Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSteel\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMain Bearing Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eChevrolet LS\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCamshaft Location: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eStandard\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eLifter Bore: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.824 in.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRear Main Seal Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eStock\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFull skirt block design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePriority main oiling system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSiamese cylinder bores\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThick decks for improved head gasket sealing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e6-bolt per cylinder head capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory oil filter provision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eParts kit included, Dart PN \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e32000018\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eGTIN: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e00807051044072\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eThis item is shipped on a pallet, via Freight Truck Only - $300.00 Extra\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e"}