{"product_id":"labwork-intake-exhaust-valves-for-gm-2-0-2-4l-ecotec-direct-fit-oe-dimensions","title":"labwork Intake \u0026 Exhaust Valves for GM 2.0–2.4L ECOTEC — Direct-Fit OE Dimensions","description":"\u003cp\u003e\u003cstrong\u003eThese labwork intake and exhaust valves are direct-fit replacement components engineered for GM 2.0, 2.2 and 2.4L ECOTEC engines, matching OE dimensions for reliable valve seating and operation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen an engine valve is bent, burned or worn, restoring proper valve geometry and sealing is essential to recover compression and performance. This labwork kit supplies intake and air-out (exhaust) valves manufactured to the specified diameters and lengths used in many GM Ecotec four-cylinder heads. Before ordering, verify the listed part numbers against your existing valves or vehicle VIN to ensure compatibility with your cylinder head and camshaft setup.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and part numbers do these valves fit?\u003c\/h3\u003e\n\u003cp\u003eThese valves are produced to match the GM ECOTEC family of 2.0L, 2.2L and 2.4L four-cylinder engines. They correspond to the specific replacement part numbers noted by labwork and are intended as like-for-like replacements for OE valves.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntake valve replacement part number: 12622329\u003c\/li\u003e\n  \u003cli\u003eAir-out (exhaust) valve replacement part number: 12615936\u003c\/li\u003e\n  \u003cli\u003eDesigned for GM 2.0L, 2.2L and 2.4L ECOTEC cylinder heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and why do they matter?\u003c\/h3\u003e\n\u003cp\u003eCorrect valve dimensions determine how the valve seats, clears the piston, and interacts with valve guides and springs. Installing valves with precise head diameter, stem diameter and overall length preserves valve-to-seat contact, avoids piston interference and maintains intended valve train geometry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntake valve: head 35.1 mm, stem 6.0 mm, overall length 102.2 mm\u003c\/li\u003e\n  \u003cli\u003eAir-out (exhaust) valve: head 30.1 mm, stem 6.0 mm, overall length 100.9 mm\u003c\/li\u003e\n  \u003cli\u003eStem diameter consistency (6 mm) ensures fit in standard guides for these ECOTEC heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I confirm compatibility before purchasing?\u003c\/h3\u003e\n\u003cp\u003eAlways compare the replacement part numbers and the physical dimensions of your current valves with the labwork specifications. Confirming fit prevents unnecessary returns, safeguards against interference, and ensures the valves seat properly after machine work or valve grinding.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch your old valve part numbers to 12622329 (intake) and 12615936 (air-out)\u003c\/li\u003e\n  \u003cli\u003eMeasure head diameter, stem diameter and length if possible\u003c\/li\u003e\n  \u003cli\u003eCheck your vehicle VIN, head casting number, or service manual for ECOTEC variant details\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should a technician consider during installation?\u003c\/h3\u003e\n\u003cp\u003eProfessional inspection and machining can be necessary when replacing valves. Proper valve guide clearances, seat condition, spring pressure and valve lash (or hydraulic lifter condition) must be checked to ensure long-term durability and performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect and, if needed, reface or replace valve seats before installation\u003c\/li\u003e\n  \u003cli\u003eVerify valve guide wear and measure clearance to avoid stem wobble\u003c\/li\u003e\n  \u003cli\u003eCheck spring height and tension; replace springs and keepers if worn\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This labwork valve set is intended for mechanics, engine rebuilders and DIY enthusiasts working on GM 2.0L, 2.2L or 2.4L ECOTEC engines who need exact-dimension intake and exhaust valves. It's suited for engine repairs after valve damage, routine head overhauls, or performance rebuilds where OE-style geometry and fitment are required. If you are unsure about fitment, measure your current valves or consult your service manual before buying.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these valves direct OEM replacements?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They match the specified OE dimensions (part numbers 12622329 and 12615936) for GM 2.0\/2.2\/2.4L ECOTEC engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to replace valve springs when installing these valves?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not always, but check spring height and tension; replace springs and retainers if worn or out of spec for best reliability.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"labwork","offers":[{"title":"Default Title","offer_id":55166296064343,"sku":"B07MM6JPYP","price":39.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/labwork-front-packaging-valves.jpg?v=1790366557","url":"https:\/\/britishgarage.co.uk\/products\/labwork-intake-exhaust-valves-for-gm-2-0-2-4l-ecotec-direct-fit-oe-dimensions","provider":"British Garage","version":"1.0","type":"link"}