The 2007 Mopar Muscle Engine Challenge

Of all the technical subjects we write about here at Mopar Muscle, our annual engine challenge always gets a great response, and why not? Where else can you see eight of the country's best engine builders compete head to head exclusively with Mopar iron, with true dyno numbers to back up their proven combinations? Since our challenge factors not just the power of each engine, but also the cost of the each engine's parts, the builders have to be creative to be competitive.

This year, our engine challenge features the small-block Chrysler powerplant, and we've already chosen the eight engine shops that will compete. We look forward to seeing what kind of numbers their potent LA engines will produce.

David Bruns and his wife, Dianne, of Mid America Racing Engines took home top honors in last year's Mopar Muscle engine challenge with their stout big-block that churned out more than 741 hp. David will compete again in this year's challenge, which will feature the small-block Chrysler engine.

This year's engine challenge will feature the potent small-block Chrysler LA powerplant, with displacement limited to 410 ci.

Comp Cams will again host our engine challenge, providing personnel as well as their dyno cell for our competition.

Rockett Brand Racing Fuels will again be sponsoring our challenge, as well as providing their specially blended 93 octane pump gas for the contest.

Any production steel block will be allowed in this year's small-block engine challenge. maybe a future contest will allow more exotic hardware such as the Mopar R3 block shown here.

Our rules regarding cylinder heads are far less restrictive than in previous contests, so we could see some exotic combinations this year.