Seller notes

Darton MID Block Sleeves for Ford Duratec / Mazda speed 3 6 2.3L MZR Engine Part: 700-100 The Darton MID kits feature: Improved block integral strength Improved cooling "Wet sleeve" replace-ability Increased horsepower output potential Superior oil and compression control Street or strip application Kits can be installed by your local machine shop Full installation manual with every kit sale Superior cylinder sealing and ring wear Ductile iron w/130,000 psi tensile strength Darton sleeve kits al...

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