{"product_id":"drt-31213544","title":"Dart 31263544; BIG M; BBC; 9.800\" Deck; 4.560\" Bore; Iron Block","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eONE IN STOCK!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBB Chevy, Dart block, Dart Big M Block, 9.800 Deck Height, 4.560 Bore, Billet Steel Main Caps, Engine Block, 2pc Rear Seal, Ships from Dart\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePRE M2 Block Series\u003c\/li\u003e\n\u003cli\u003e9.800” deck height\u003c\/li\u003e\n\u003cli\u003e4.560” bore, Max bore is 4.625 size, Siamese extra thick cylinder walls to resist cracking and improve ring seal (minimum .300” thick with 4.625” bore).\u003c\/li\u003e\n\u003cli\u003eUses +.300” tall Gen VI style lifters\u003c\/li\u003e\n\u003cli\u003e4-bolt billet main bearing caps have splayed outer bolts for extra strength\u003c\/li\u003e\n\u003cli\u003eTrue priority main oil system lubricates the main bearings before the lifters. Our stepped main oil gallery (9\/16“ to 1\/2“ to 7\/16“) increases the flow of oil to the crank at high RPM, and our front oil crossover eliminates internal oil leaks around the distributor shaft.\u003c\/li\u003e\n\u003cli\u003eLifter valley head stud bosses prevent blown head gaskets\u003c\/li\u003e\n\u003cli\u003eDual oil pan bolt patterns fit standard and notched oil pans.\u003c\/li\u003e\n\u003cli\u003eBig M: Parts kit included (PN 32000039 )\u003c\/li\u003e\n\u003cli\u003e220 BHN Cast iron material\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dart Machinery","offers":[{"title":"Default Title","offer_id":31504710729779,"sku":"DRT-31213544","price":5000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0102\/9082\/3219\/products\/DART_240x240_bb4b1dcd-471c-4a9e-8d9b-9c7867904121.png?v=1578495837","url":"https:\/\/3vperformance.com\/products\/drt-31213544","provider":"3V Performance","version":"1.0","type":"link"}