{"product_id":"diamond-pistons-gm-ls-4-065-bore-4-000-stroke-6-125-rod-21-0cc-vol-dish-11553-r1-8","title":"Diamond Pistons - GM LS - 4.065\" Bore - 4.000\" Stroke - 6.125\" Rod -21.0CC Vol - Dish","description":"\u003cp\u003eDIAMOND PISTON SET - LS - 4.065\" BORE - 4.000\" STROKE - 21cc DISH - 11553-R1-8\u003cbr\u003e\n• 3D milling on piston crowns for ready to install finish\u003cbr\u003e\n • Valve pockets designed to work with most aftermarket cylinder heads\u003cbr\u003e\n • Offset pins for quiet operation\u003cbr\u003e\n • Moly skirt coating for friction loss and skirt wear protection\u003cbr\u003e\n • Top ring down dimension: .250”\u003cbr\u003e\n • Ratios figured for .040 head gasket\u003cbr\u003e\n • Premium 1.2mm\/1.2mm\/3.0mm ring package included\u003cbr\u003e\n • Premium 8620 .185w wrist pins included\u003cbr\u003e\n • Valve pocket depth: 0.178” intake and .108” exhaust\u003cbr\u003e\n • 2618 material for high horsepower, nitrous, and forced induction applications\u003c\/p\u003e","brand":"Diamond Pistons","offers":[{"title":"Default Title","offer_id":52041555542310,"sku":"11553-R1-8","price":952.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/11553-r1-8.jpg?v=1770809830","url":"https:\/\/billysspeedshop.com\/products\/diamond-pistons-gm-ls-4-065-bore-4-000-stroke-6-125-rod-21-0cc-vol-dish-11553-r1-8","provider":"Billys Speed Shop","version":"1.0","type":"link"}