The 2010 AMSOIL/Mopar Muscle Engine Challenge featured the Mopar small-block, and all of the competitors were required to use the same RHS/Indy X cast iron cylinder heads on their engines. By now we’re sure you know that Schurbon Engine and Machine won the 2010 contest, which was judged by the most peak horsepower per cubic inch. All of the engines in the 2010 contest were impressive, and the fact that none of these engines failed is a testament to sound Chrysler engineering and the professional engine building techniques employed by the contestants. This month we’ll give you a list of the parts that went into the engines and show you the dyno sheets attesting to their power. Each engine shop is listed in the order they finished in the 2010 AMSOIL/Mopar Muscle Engine Challenge.

Building powerful and durable engines takes great skill, and this year’s small-blocks impressed everyone as each of the engines that made the required dyno pulls scored well over one horsepower per cubic inch running on Rockett Brand 93 octane unleaded gasoline. In fact, we’d love to have any of these engines for one of our Mopars as they all impressed us with their power and durability. As you’ll see from the parts lists and dyno sheets below, these small-blocks didn’t act so small with some making horsepower numbers that would be impressive even from larger displacement engines. Be sure to visit our website where you can see videos of the 2010 contest, and check out the rules for the 2011 contest which will feature a big-block Mopar engine.

Schurbon Engine and Machine Parts

Block: Factory 340 Chrysler
Crank: Factory 318 Chrysler
Pistons: CP Bullit forged
Connecting Rods: Dyers remanufactured forged
Camshaft: Comp Cams solid roller
Timing Gears and Chain: Cloyes
ValveSprings: Used Winston Cup
Rocker Arms: Comp Cams aluminum roller
Cylinder Heads: RHS/Indy X heads
Intake Manifold: Indy single-plane
Carburetor: Holley four-barrel
Oil Pan: Milodon
Distributor: MSD Pro-billet

Promax Performance Parts

Block: Factory 340 Chrysler
Crank: Factory 340 Chrysler
Pistons: forged flat-top
Connecting Rods: Eagle Forged
Camshaft: Comp Cams solid roller
Timing Gears and Chain: Comp Cams
ValveSprings: Comp Cams
Rocker Arms: Harland Sharp
Cylinder Heads: RHS/Indy X heads
Intake Manifold: Edelbrock Super Victor
Carburetor: Promax-prepped Holley four-barrel
Oil Pan: Milodon
Distributor: MSD Pro-billet The Power

Mid America Racing Engines Parts

Block: Factory 360 Chrysler
Crank: Eagle forged, four-inch stroke
Pistons: CP forged
Connecting Rods: Scat forged
Camshaft: Cam Motion solid roller
Timing Gears and Chain: PBM
ValveSprings: PBM
Rocker Arms: Harland Sharp aluminum roller
Cylinder Heads: RHS/Indy X heads
Intake Manifold: Edelbrock single-plane
Carburetor: Holley four-barrel
Oil Pan: Moroso
Distributor: MSD Pro-billet