{"product_id":"honda-exhaust-valve-guide-over-size-12205-pna-305","title":"Honda - Exhaust Valve Guide (Over Size) - 12205-PNA-305","description":"\u003ch2\u003eHonda | Exhaust Valve Guide (Over Size) | 12205-PNA-305\u003c\/h2\u003e\n\u003cp\u003eRestore proper valve-to-guide clearance with the \u003cstrong\u003eHonda Exhaust Valve Guide (Over Size)\u003c\/strong\u003e. This genuine Honda replacement is made for cylinder head rebuilds where the original guide bore has been reconditioned and now requires an \u003cstrong\u003eover size\u003c\/strong\u003e guide to achieve the correct press fit. When installed and sized correctly, it helps keep the exhaust valve aligned and moving smoothly, supporting consistent sealing, stable compression, and long-term durability.\u003c\/p\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Honda\u003c\/strong\u003e valve guide for dependable fit and material quality\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver size\u003c\/strong\u003e design for heads that have been machined to accept an over size guide\u003c\/li\u003e\n\u003cli\u003eHelps maintain correct \u003cstrong\u003evalve stem support\u003c\/strong\u003e and alignment\u003c\/li\u003e\n\u003cli\u003eSupports improved \u003cstrong\u003eoil control\u003c\/strong\u003e by reducing excess guide clearance\u003c\/li\u003e\n\u003cli\u003eIdeal for rebuilds addressing worn guides, poor sealing, or uneven valve wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eWhy It Matters\u003c\/h3\u003e\n\u003cp\u003eExhaust valve guides work under extreme heat and can wear over time. Excess clearance can contribute to oil consumption, inconsistent idle, reduced compression, and accelerated valve and seat wear. Replacing a worn guide with the correct over size guide during a rebuild helps bring the cylinder head back within specification for smoother operation and reliable performance.\u003c\/p\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOver size valve guides require \u003cstrong\u003eaccurate measurement\u003c\/strong\u003e and proper installation tools.\u003c\/li\u003e\n\u003cli\u003eAfter press-in, the guide may need to be \u003cstrong\u003efinish-reamed or honed\u003c\/strong\u003e to achieve correct valve stem clearance.\u003c\/li\u003e\n\u003cli\u003eProfessional machine shop installation is recommended for best results.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honda","offers":[{"title":"Default Title","offer_id":54728939766051,"sku":"12205-PNA-305","price":16.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/12205-PNA-305.png?v=1770838226","url":"https:\/\/partsvu.com\/products\/honda-exhaust-valve-guide-over-size-12205-pna-305","provider":"PartsVu","version":"1.0","type":"link"}