{"product_id":"brian-crower-valve-guides-6-0mm-intake-subaru-ej205-ej257-ej257b","title":"Brian Crower Valve Guides 6.0mm Intake Subaru EJ205 EJ257 EJ257B","description":"\u003cp\u003e\u003cspan\u003eBC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances. BC guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and rpm's. The perfect replacement to worn or damaged guides and 100% compatible with BC's lineup of stainless steel valves.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA valve guide is a cylindrical piece of metal, pressed or integrally cast into the cylinder head, with the valve reciprocating inside it. Guides also serve to conduct heat from the combustion process out from the exhaust valve and into the cylinder head where it may be taken up by the cooling system.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u0026gt;5.5mm Intake\u003c\/li\u003e\n\u003cli\u003eCNC machined Manganese Silicon Aluminum Bronze alloy\u003c\/li\u003e\n\u003cli\u003ecracking and corrosion resistant\u003c\/li\u003e\n\u003cli\u003e100% compatible with\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSubaru EJ205 EJ257 EJ257B\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Brian Crower","offers":[{"title":"Default Title","offer_id":50677385953513,"sku":"BC3960","price":80.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/7455\/9465\/files\/Screenshot2026-03-23081508_b58fe4fa-10c4-4977-a02b-a890a54493c0.png?v=1774268750","url":"https:\/\/ac4performance.com\/products\/brian-crower-valve-guides-6-0mm-intake-subaru-ej205-ej257-ej257b","provider":"AC4 Performance","version":"1.0","type":"link"}