{"product_id":"kb-performance-kb147-030-18cc-dished-piston-set-for-small-block-chevrolet","title":"KB Performance KB147.030-18cc Dished Piston Set for Small Block Chevrolet","description":"\u003cp\u003eTechnical Specs: Alloy: Hypereutectic 390 Bore: 4.155'' Crankshaft Stroke: 3.750'' Connecting Rod Length: 5.700'' Deck Height: 9.025'' Compression Height: 1.433'' Pin Size: 0.9272'' Pin Location: Centered Flat Top: -18cc 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: 0.265'' Ring Grooves: 5\/64'' Top; 5\/64'' Middle; 3\/16'' Bottom Gram Weight: 543\/145 Compression Ratio: 10.8:1 w\/58cc Heads; 10.4:1 w\/62cc Heads; 10.2:1 w\/64cc; 9.1:1 w\/76cc Heads\u003c\/p\u003e","brand":"United Engine \u0026 Machine Co","offers":[{"title":"Default Title","offer_id":51748954636570,"sku":"SLVKB147.030","price":79.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8942\/8506\/files\/51qPfmhRShL.jpg?v=1772041792","url":"https:\/\/trybeepbeep.com\/products\/kb-performance-kb147-030-18cc-dished-piston-set-for-small-block-chevrolet","provider":"TryBeepbeep","version":"1.0","type":"link"}