{"product_id":"atk-engines-sp15nb-chevy-377-stroker-short-block-18cc-dish","title":"ATK Engines SP15NB Chevy 377 Stroker Short Block, 18cc Dish","description":"\u003cp\u003eEngine Specifications: Block: 100% New American Made Block 1pc Seal with upgraded heavy duty 2 bolt main caps (this is not your typical GM 2 bolt main block) Bore\/Stroke: 4.000” x 3.750” Displacement: 377CI Crankshaft: Scat nodular iron external balance rear of the crank\/internal balance front of the crank Rods: Scat 4340 forged I beam with ARP 8740 bolts Pistons: Hypereutectic -18cc dished Compression Ratios: 58cc = 10.3:1 \/ 64cc = 9.7:1 \/ 70cc=9.1:1 (can vary due to deck height\/gasket thickness) Rings: Plasmamoly Camshaft Bearings: Dura-Bond, installed and clocked to OEM position Freeze Plugs: Brass, installed and sealed Oil Galley Plugs: Installed and sealed Flexplate\/Flywheel: External balance 168 tooth (with Scat kit) Recommended Components: Balancer: Internal balance Head Gasket: .038” or per applicationEngine Info: Oil: 10W30 Non synthetic for first 3000 miles Oil Filter: Wix or K\u0026amp;N per application Disclaimer: The recommended components listed are ATK’s recommendations of parts to be used, applications vary and your build may need something different. Contact ATK for a recommendation if you’re not certain about a component to use. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary\u003c\/p\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlock: 100% New American Made Block 1pc Seal with upgraded heavy duty 2 bolt main caps (this is not your typical GM 2 bolt main block)\u003c\/li\u003e\n\u003cli\u003eBore\/Stroke: 4.000\" x 3.750\"\u003c\/li\u003e\n\u003cli\u003eDisplacement: 377CI\u003c\/li\u003e\n\u003cli\u003eCrankshaft: Scat nodular iron external balance rear of the crank\/internal balance front of the crank\u003c\/li\u003e\n\u003cli\u003eRods: Scat 4340 forged I beam with ARP 8740 bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrate Engine Type:\u003c\/strong\u003e Short Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Type:\u003c\/strong\u003e Hydraulic Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Covers Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Balance:\u003c\/strong\u003e Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Heads Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Main Seal Style:\u003c\/strong\u003e 1-piece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Body Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Pan Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming Cover Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarmonic Balancer Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexplate Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Cleaner Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plugs Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wires Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComputer Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Harness Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMFG. Part #:\u003c\/strong\u003e SP15NB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ATK Engines\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Erise Motors","offers":[{"title":"Default Title","offer_id":67752133493056,"sku":null,"price":2300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/7757\/6256\/files\/35020031_L1450_1c25737d-f744-4cc0-9d91-aab327b9b9c3-510x510.jpg?v=1791839249","url":"https:\/\/vorlaxauto.com\/products\/atk-engines-sp15nb-chevy-377-stroker-short-block-18cc-dish","provider":"Vorlax Auto","version":"1.0","type":"link"}