545 Dove Head 4X4 Build
I was just doing some dyno testing on a 545 build that I did for a customer who plans to use the engine in a four wheel drive truck for trail riding and some playing in the mud.
The build consists of: A D1VE block bored .030 to 4.390 bore size, Mahle dished pistons and rings, Scat I beam 6.700 length rods, Scat forged 4.500 stroke crank, Power bond damper, stock Melling oil pump and drive shaft in a Millodon 4X4 oil pan. The heads are ported DOVE-C's with SI CJ size stainless valves, double springs, chrome moly retainers and a set of Yella Terra pedestal mount roller rockers.
The cam is a hydraulic roller from Demos' Cams ground using a lobe from a series of hydraulic roller lobes that I had designed for use in Ford Cleveland, Big Chevy, Big Ford or any engine with a big base circle, heavy valvetrain and high ratio rockers. I used the DM230HR lobe on both the intake and exhaust on a 108 lobe separation in on a 108 intake centerline.
The intake manifold is an Edelbrock Torker 2 that has been ported in the plenum and port matched to the heads. Carburetor is my 950HP and overall the best combination was that carburetor on a 4 hole on top of a 1 inch open spacer. Best total timing 33 degrees.
Exhaust is a set of headers that were home made by Wes Littrell in a T bucket style, 2 inch pipes into 3.5 inch collectors with Schoenfield mufflers.
Best torque and HP on 91 octane pump gas is 700lbs/ft at 4000rpm and 600 horsepower at 5100. My dyno simply would not pull the engine any lower so starting at say 3000rpm was not possible.
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