This is it. We are all set to see which one is best – once and for all. We can end this decades long argument with a couple of similarly built engines and a tug in the dyno, right? Not so fast! I can already hear the Ford purists clamoring about the 351C (a big block, btw) and the 351M. The Chevy guys are hollering about the LS and the 400 SBC.

Well, this is how it’s gotta be: Both these old school crates will have stock bottom ends – except for the camshafts. Cams will be of the high-performance hydraulic roller type. Each motor will be topped off with a set of aftermarket aluminum cylinder heads from AFR. Fuel and air are dispensed via a Holley XP 750 carburetor mated to an Edelbrock Performer intake manifold. Spark comes from MSD ignition systems (including distributor). Both engines are running open exhaust headers and pump gas. The overall cost of parts for each engine was surprisingly comparable.

The big mystery has finally come to an end. The Chevy mill topped out at 425.6hp @ 5900 RPM and 422.9 lb.-ft. of torque @ 4300 RPM.

Testing last is the Ford motor. Accelerating flawlessly, the Windsor put out 430.6hp @ 6300 RPM and 427.7 lb.-ft. of torque @ 4200 RPM.

Now, run tell dat.

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