{"product_id":"ultima-11-3183-107-cubic-inch-4-inch-bore-domed-piston-set-020-oversize","title":"Ultima 11-3183 107 Cubic-Inch 4-Inch Bore Domed Piston Set, .020 Oversize","description":"107 inch Ultima domed piston set for use with 4 inch bore cylinders with 10.1:1 compression with piston rings  clips  and pins included.\n\u003cp\u003eThe Ultima 11-3183 107 cubic-inch piston set is designed for high-performance engine builds using cylinders with a 4-inch bore. This .020 oversize set features a domed piston design and is engineered for a 10.1:1 compression ratio, making it a suitable replacement or upgrade for compatible applications requiring dependable fitment and performance. The set includes the primary components needed for installation, helping simplify engine assembly and service.\u003cbr\u003eSupplied as a complete set, the Ultima 11-3183 includes piston rings, wrist pins, and retaining clips. Each component is matched for use with the piston set to support proper installation and reliable operation. Verify cylinder bore specifications, compression requirements, piston-to-cylinder clearance, and engine compatibility before installation, especially when replacing pistons in a performance-oriented build.\u003cbr\u003eUltima manufactures this piston set in the USA. The .020 oversize specification is intended for cylinders machined to accommodate the corresponding piston size, so professional inspection and precise machining are recommended for proper clearances. For related service needs, compatible accessory options include standard and additional oversize Ultima piston sets, while the suggested 11-3120 ring set is intended for a different application and should be confirmed before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Ultima\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: 11-3183\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Designed for 107 cubic-inch engines using cylinders with a 4-inch bore\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePiston Design: Domed piston configuration\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompression Ratio: 10.1:1\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOversize: .020 oversize\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncluded Components: Piston rings, retaining clips, and wrist pins included\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUOM: Set\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCountry of Origin: USA\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAccessory Items: 11-3180 - 107 inch Ultima 4 inch Bore Piston Set Standard, 11-3181 - 107 inch Ultima 4 inch Bore Piston Set .005 Oversize, 11-3184 - 107 inch Ultima 4 inch Bore Piston Set .030 Oversize\u003c\/li\u003e\u003c\/ul\u003e","brand":"Ultima","offers":[{"title":"Default Title","offer_id":44897033912362,"sku":"11-3183","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-3183a.jpg?v=1790209991","url":"https:\/\/atticusgoods.com\/products\/ultima-11-3183-107-cubic-inch-4-inch-bore-domed-piston-set-020-oversize","provider":"Atticus Goods","version":"1.0","type":"link"}