{"product_id":"kb-performance-kb157-030-5cc-domed-piston-set-for-small-block-chevrolet","title":"KB Performance KB157.030 +5cc Domed Piston Set for Small Block Chevrolet","description":"\u003cp\u003eSpecs Technical: Alloy: Hypereutectic 390 Bore: 4.030'' Crankshaft Stroke: 3.250'' Connecting Rod Length: 5.700'' Deck Height: 9.025'' Compression Height: 1.678'' Pin Size: 0.9272'' Pin Location: Centered Solid Dome Top: .100'' -.5cc 2 Symmetrical Valve Reliefs Intake Valve Relief: 0.280'' Depth \/ 2.168'' Diameter Exhaust Valve Relief: 0.280'' Depth \/ 2.168'' Diameter Top Landing Height: 0.275'' Ring Grooves: 5\/64'' Top; 5\/64'' Middle; 3\/16'' Bottom Gram Weight: 585\/145 Compression Ratio: 11.3:1 w\/58cc Heads; 10.7:1 w\/62cc Heads; 10.5:1 w\/64cc; 9.1:1 w\/76cc Heads\u003c\/p\u003e","brand":"United Engine \u0026 Machine Co","offers":[{"title":"Default Title","offer_id":51748954997018,"sku":"SLVKB157.030","price":76.81,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8942\/8506\/files\/61bX71H4kiL.jpg?v=1772041816","url":"https:\/\/trybeepbeep.com\/products\/kb-performance-kb157-030-5cc-domed-piston-set-for-small-block-chevrolet","provider":"TryBeepbeep","version":"1.0","type":"link"}