{"product_id":"je-pistons-mazda-1-8l-bp-kit-set-of-4-pistons-2","title":"JE Forged Piston Kit (84.5mm, 9.0:1 CR) - NA8\/NB Miata (94-05)","description":"\u003cp\u003eJE forged piston kit for the Mazda 1.8L BP engine used in the Miata, sized for an 84.50 mm (3.327 in) bore. The crown is JE's inverted dome\/dish design with a piston volume of -3.40 cc, and JE rates the kit at 9.00:1 compression. The kit is a set of 4 pistons with wrist pins, locks and rings; the stock BP bore is 83 mm, so the block must be bored to suit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eJE-rated 9.00:1 compression ratio; JE states no conditions for this figure (no stroke, chamber volume, gasket or deck values), so the final ratio depends on your head, gasket and deck\u003c\/li\u003e\n\u003cli\u003e84.50 mm (3.327 in) bore, 1.205 in compression height, -3.40 cc piston volume\u003c\/li\u003e\n\u003cli\u003eForged from 2618 aluminum; JE lists the forging type as round\u003c\/li\u003e\n\u003cli\u003eIncludes 4 pistons with wrist pins, locks and JE Pro Seal piston rings (0.040 in top \/ 0.048 in second \/ 0.111 in oil)\u003c\/li\u003e\n\u003cli\u003eWrist pins 0.787 in (20 mm) diameter x 2.250 in long, 0.180 in wall\u003c\/li\u003e\n\u003cli\u003eJE features listed for this kit: accumulator groove, double pin oilers and skirt coating; average piston weight 305 g\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 1994-1997 Mazda Miata (NA8, 1.8L) and 1999-2005 Mazda Miata (NB, 1.8L) with the block bored to 84.50 mm. JE lists this kit by engine (Mazda BP Series, 1.8 BP Miata cylinder head) and does not publish model years; the years shown are the Miata years for that engine. Not for 1990-1993 1.6L cars. Have a machine shop confirm bore size and piston-to-wall clearance before assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart number:\u003c\/strong\u003e JE Pistons 255775\u003c\/p\u003e\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1994-1997\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2005\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"JE Pistons","offers":[{"title":"Default Title","offer_id":45995618304225,"sku":"JEP255775","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0620\/6849\/0465\/files\/7d3699779f4d431fbb069862f2cf6fec_c584344a-471b-4e8c-94de-762aba92d95d.jpg?v=1734277012","url":"https:\/\/www.garage-56.com\/products\/je-pistons-mazda-1-8l-bp-kit-set-of-4-pistons-2","provider":"Garage 56 Engineering ","version":"1.0","type":"link"}