In the earth of racing and overall performance, BIGGER is actually better. Ford Performance understands - and that is exactly the reason it includes BOSS tiny blocks in Big Bore editions. The Ford Performance BOSS blocks are intended to be a substitute for the celebrated BOSS 302 and BOSS 351 blocks with the help of the most up technology manufacturing strategies out there. Cast from diesel grade metal with siamese bores, solid cylinder wall surfaces as well as decks, BOSS block power is significantly superior to your Ford manufacturing block ever offered. Ford Performance Big Bore model of the BOSS 302 clog up renders it less complicated plus more cost effective to establish extremely BIG little blocks. To insure the foremost accurate bore location, integrity and concentricity, the BOSS Big Bore blocks are machined yet another.125 during the first block fixturing along with dull stage. With an unfinished bore measurements of 4.120 , Ford Performance BOSS 302 Big Bore blocks will help support car engine sizes up to 363 cubic in. The Ford Performance BOSS clog up power has become shown near the globe, each...