{"product_id":"btr-small-bore-ls9-head-gasket-3-950-bore-sold-in-pairs-btr-058420-2","title":"BTR Small Bore LS9 Head Gasket - 3.950\" Bore - Sold in Pairs","description":"\u003cp\u003eBTR SMALL BORE LS9 HEAD GASKET - 3.950\" BORE - SOLD IN PAIRS - BTR-058420-2\u003cbr\u003e\nThe BTR LS9 head gasket can't be beat for performance and value, but traditionally, the smaller bore engines have had to make do with a head gasket bore 0.15\" bigger than needed. By re-designing a smaller bore gasket, we increased the amount of gasket material between the bores another 0.15\" for better durability . This is advantageous on small bore LS engines with higher cylinder pressures such as those found in power adder applications. These feature .055\" thickness spread across 7 layers of steel.\u003cbr\u003e\nInstall tab towards front \u0026amp; added coolant passages to the rear\u003cbr\u003e\nDESIGNED TO WORK  WITH A TRICK FLOW FAST AS CAST LS1 HEAD.\u003cbr\u003e\nMay also work with other aftermarket cylinder heads.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":52041491743014,"sku":"BTR-058420-2","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/btr-058420-2-pair.jpg?v=1770811069","url":"https:\/\/billysspeedshop.com\/fr\/products\/btr-small-bore-ls9-head-gasket-3-950-bore-sold-in-pairs-btr-058420-2","provider":"Billys Speed Shop","version":"1.0","type":"link"}