Ford Performance BOSS 351 Big Bore Engine Block; 9.50-Inch Deck

Big Bore Racing Engine Block. If you want to upgrade your Mustang for better racing performance, you should consider getting the Ford Performance BOSS 351 Big Bore Engine Block. This replacement block is primarily for racing and performance, and is a great upgrade for the BOSS 351 block, using the latest technology and manufacturing techniques.

High-Quality Construction. This Ford Performance BOSS 351 Big Bore Engine Block features a cast iron construction for strength and durability. It is cast from diesel-grade iron with Siamese bores and thick cylinder walls and decks, creating a strong block that can withstand the punishment brought about by racing. It has a 9.50-inch deck height, finished at 9.500 inches plus 0.010 to 0.015 inches.

Direct-Fit Installation. This Ford Performance BOSS 351 Big Bore Engine Block is a direct-fit replacement for the BOSS 351 block. It is designed to directly install where the original block once was with minimal adjustments. It's compatible with the original 351W blocks and machined to accept factory roller lifter guides and lifter guide retainer for easy installation.

No Warranty Included. Most Ford Racing Performance parts, including this BOSS 351 Big Bore Engine Block, are sold with no warranty. They are sold “as is,” “with all faults,” “as they stand,” and without any express warranty whatsoever, unless otherwise expressly designated. Should the part be defective following the purchase, the buyer and not the manufacturer, distributor, or retailer, shall assume the entire cost of servicing or repair.

Application. This Ford Performance BOSS 351 Big Bore Engine Block is designed to fit all Ford Mustang models.

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