GM Authority

Engine Masters Finds Out Which Headers Work Best On The 400 Cubic-Inch V8: Video

On episode 4 of Engine Masters, Roadkill host David Freiburger and friends beat-up some Hooker headers mounted on a 400-cubic inch V8 to see if the restricted air flow would hinder performance. What ...
Hot Rod

Engine Masters Ep. 4 Bashes Headers For Horsepower—So You Don’t Have To

Thankfully, our tunnel-rammed BluePrint Engines 400ci small-block is back in the dyno cell wearing a pair of 1-3/4-inch Hooker Super Comp headers that are ripe for a little clearancing. Along ...
Hot Rod

Engine Masters Ep. 3 Duels a Mopar 383 vs. Chevrolet 383 – Which Churns More Horsepower?

Welcome back to Engine Masters, presented by Amsoil, we're here with our first head-to-head shootout: Mopar versus Chevy! While the Mopar 383 big-block served as the workhorse performance engine of ...
GM Authority

Engine Masters Compares Cast-Iron Manifolds To Mid-Length And Long-Tube Headers: Video

On a previous episode of Engine Masters, we watched David Freiburger (of Roadkill fame) and his crew run a comparison test between differently sized headers of the same long-tube variety. This time, ...