1969 L88 427 Dyno 557 HP

This is a real L88 1969 512 block open chamber 074 heads 198 manifold 4296 850 carb stock crank NOS L88 cam mechanical lifters, Ross -51 CC pistons, bore is . Deck stock, compression ratio approximately 12.5 to 1, timing 36 degrees, no special tuning running through 2 and 1/8 inch headers, flow masters, Sunoco 112 octane. One run to 6500 RPM produced 557 HP, 492.5 torque. The stories are true about the power these can make. The GM rating of 430 HP was met at 4800 RPM. This motor is as close to stock as we could build it. Without the flow masters and additional tuning this could hit 600 HP. This will be married to a M22 rock crusher and put into a 1955 Chevy American Graffiti recreation.