{"product_id":"sierra-18-1254-vortec-head-gasket-set-replaces-mercruiser-27-75611a03-for-small-block-gm-v8-305-350-377-cid-1996-newer","title":"Sierra 18-1254 Vortec Head Gasket Set, Replaces 27-75611A03, GM Small Block V8","description":"\u003cp\u003eThe Sierra 18-1254 Vortec Head Gasket Set is a complete head gasket set built for small block GM V8 engines equipped with Vortec heads, including MCM\/MIE GM V-8 305, 350 and 377 cid Gen+ engines from 1996 and newer. It is engineered to meet the demands of high horsepower marine engines and to hold up in the harsh marine operating environment, sealing the cylinder head to the block to maintain compression and prevent coolant or oil leakage at the head joint.\u003c\/p\u003e\u003cp\u003eThis is a direct replacement for OEM number 27-75611A03, so it installs using the factory bolt pattern and sealing surfaces without modification. As with all Sierra parts, it is built to meet or exceed the performance of the original equipment part it replaces, and it is backed by Sierra's industry leading customer satisfaction warranty. Boat owners and marine technicians use this set during head gasket replacement, engine rebuilds, or top-end overhaul work on compatible small block V8 engines.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-1254\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Vortec Head Gasket Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Small Block GM V8 engines with Vortec heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e MCM\/MIE GM V-8 305, 350 \u0026amp; 377 cid Gen+ engines (1996 and Newer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 27-75611A03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.36 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282304768\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Covered under Sierra's customer satisfaction warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSmall Block GM V8 engines with Vortec heads\u003c\/li\u003e\n\u003cli\u003eMCM\/MIE GM V-8 305, 350 \u0026amp; 377 cid Gen+ engines (1996 and Newer)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-75611A03\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-1254 head gasket set fit?\u003c\/strong\u003e The Sierra 18-1254 Vortec Head Gasket Set fits small block GM V8 engines with Vortec heads, including MCM\/MIE GM V-8 305, 350 and 377 cid Gen+ engines from 1996 and newer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-1254 replace?\u003c\/strong\u003e It is a direct replacement for OEM number 27-75611A03.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-1254 head gasket set weigh?\u003c\/strong\u003e The Sierra 18-1254 Vortec Head Gasket Set weighs 1.36 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-1254 a complete head gasket set?\u003c\/strong\u003e Yes, 18-1254 is sold as a complete Vortec head gasket set for small block GM V8 engines, not an individual gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this gasket set work on a non-Vortec small block GM head?\u003c\/strong\u003e The 18-1254 set is designed specifically for small block GM V8 engines with Vortec heads, so it is intended for that head configuration rather than earlier non-Vortec head designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra 18-1254 come with a warranty?\u003c\/strong\u003e Yes, the 18-1254 Vortec Head Gasket Set is covered under Sierra's customer satisfaction warranty like all Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-1254 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e 18-1254 is a genuine Sierra part, engineered and sold under the Sierra brand to meet or exceed the performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-1254 gasket set packaging?\u003c\/strong\u003e The product measures 0.39 x 0.39 x 0.39 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use 18-1254 for a top-end engine rebuild?\u003c\/strong\u003e Yes, the Vortec Head Gasket Set is commonly used during head gasket replacement, engine rebuilds, or top-end overhaul work on compatible GM small block V8 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1254 set fit both MCM and MIE engine configurations?\u003c\/strong\u003e Yes, it is listed as fitting MCM\/MIE GM V-8 305, 350 and 377 cid Gen+ engines, 1996 and newer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-1254 set?\u003c\/strong\u003e The 18-1254 is a head gasket set for small block GM V8 engines with Vortec heads, covering the head gasket sealing components for that engine platform.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988087320795,"sku":"SIE-18-1254","price":167.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1254__73338.1722354035.500.750.jpg?v=1785188313","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-1254-vortec-head-gasket-set-replaces-mercruiser-27-75611a03-for-small-block-gm-v8-305-350-377-cid-1996-newer","provider":"Good Vibes Marina","version":"1.0","type":"link"}