The engine and transmission combo for the Menace is a 427 Chevy big block coupled to a Borg Warner T-56 6-speed.

The Rat Motor will be topped off with a set of GM Performance Parts Aluminum Oval Port heads with 2.25" intake valves and 1.88" exhaust valves with a 110cc combustion chamber yielding a 10:1 compression ratio. Accel will be covering the lifter valley with their SuperRam Fuel Injection manifold and will be controlled by the Accel DFI fuel injection computer. Comp Cams will be providing the roller bump stick, lifters, and roller rockers. To light everything off MSD is supplying a complete ignition system. Griffen Radiators will cool everything down while all the hot gasses exit through a custom set of headers designed by Dennis. AutoMeter will monitor everything in the custom dash and make sure everything stays in one piece.

To make sure the Rat doesn't escape from the frame Dennis has machined some custom front motor plates and has integrated a rear engine support into the fire wall which will attach to the upper two bell housing bolts.

The T-56 is out of a '96 Z-28 with a few break in miles on it. Centerforce is suppling the needed clutch parts to couple the new trans to the old Rat Motor. Along with a stock '96 Z-28 bell housing and a Hurst Shiftier, everything should shift smoothly.

Here are a few computer generated graphs of what is to be expected from the 427. These graphs compare three different cam grinds from Comp Cams.

Some picures of the Accel Superam Fuel Injection system. Along with the MSD ingnition system to light off the fuel, and the Griffen Radiator to cool everything down.

The headers were designed in Pro/Engineer to be equal length with 2" x 36" primary tubes with 3.5" collectors (Drivers side model is shown here). A special tool was made to create a smooth trasition from the "D" shaped exhuast ports to the 2" primarys. The rest of the exhaust will be made out of 3.5" tube with a set of 40 series Flowmaster Mufflers.