Dragzine – Ultra Swap: William Tetro’s Turbo LS-Powered Mazda RX-7

Dragzine – Ultra Swap: William Tetro’s Turbo LS-Powered Mazda RX-7

william tetro LS swapped rx-7

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LS swaps, thanks to their relatively low entry cost and wide appeal, tend to run the gamut — from rudimentary swaps of high-mile, bone-stock 5.3’s into raggedy Fox bodies, to certifiable show-winners utilizing high-end aftermarket parts. Whether you’ve got money or you don’t, swapping is for everyone….that fact is what has made the LS one of hot rodding’s all-time-great engine platforms.

William Tetro’s 1994 Mazda RX-7, as you’ll see, is most certainly the latter of the two extremes.

willtet rx-7 ls swap

The Florida native has assembled one of the most striking RX-7’s in the country, with menacing looks to go with the built-LS under the hood that’s primed to push it into the 4-second range. Tetro self-built the 388 cubic-inch mill that’s paired with a 91mm BorgWarner turbo.

Tetro has owned the RX-7 for eight years and notes that, “pretty well everything was built in my garage.”

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