Just dynoed my new 408 for my truck today. It's got Edelbrock heads, KB forged flat tops, and a solid flat tappet cam. I run E85, and it went 578 horsepower, and the torque was 542. That's up about 60 horse over the previous lower compression, hydraulic cam version. I drove it everyday this winter to work, and I plan on driving it all year long!


Pump Gas Small Blocks Rock! 11.53 @ 116mph E85 408 at 8500 ft da, 3605 pound truck, 3.91s, street driven