RCS Performance Engineering

RCS CRATE ENGINE-406/400-9.0 Gen1 S/B Chevy 750cfm Carbureted

500 Hp/510 Ft.Lbs

406 Crate Engine 500 HP

RCS Engineered Racing Engines
Engine Special - Chevy 406/400-9.0 Gen1

With 500Hp and 510lbs of torque, creating peak Hp is at 5,800 rpm's and peak torque is at 4,500. This is great all-around power package for hotrods and streetrods; torque is high maintaining a nice power band finishing up at 6,200 rpms. Idle quality is great at 850 to 950 rpms creating about 10-12 inches of manifold vacuum to run power brakes. To keep the cost down we installed a flat tappet mechanical camshaft and roller rockers. The compression ratio is 10.5 -1 requiring the use of 93 octane fuels. In this engine combo we used an open plenum intake manifold to shift the torque curve higher in the rpm band.  

406 Chevy Crate 500 HP