Karl Kustoms 427 CID LS7 Forged Rotating Assembly 777 HP/660 LB-FT

Karl Kustoms 427 CID LS7

This engine was assembled by our late model performance experts using trusted, durable components.  The foundation is a forged rotating assembly yielding 12:1 compression and custom ground camshaft. This solid short block is topped with a set of Frankenstein F710 Cylinder heads loaded with PAC springs, T & D Shaft mount rockers, and a ptR Carbon Fiber intake manifold.  The end product is a powerful, reliable, and great looking engine that is ready for your late model vehicle, or to add a modern power plant to your hot rod or muscle car.  This engine was broken in and tested on our in-house engine Dyno, and it produced a power peak of 777 Horsepower and 660 LB-FT of Torque.

Build Specifications:

· 427 CID – 4.130 Bore X 4.000 Stroke

· 12:1 Compression Ratio

· JE Forged Aluminum Pistons

· Total Seal Piston Rings

· Callies 4340 Forged Dragonslayer Crankshaft – 58x Reluctor

· Manley Pro-Series Lightweight I-Beam Connecting Rods

· Clevite Heavy Duty HN Rod Bearings

· Federal Mogul Heady Duty Main Bearings

· Frankenstein F710 Cylinder Heads

· Frankenstein F-Series Water Crossover Kit

· T & D COPO Shaft Mount Rocker System

· Custom Spec 8620 Camshaft

· PAC Racing 1209X RPM Series Valve Springs

· Johnson Tie Bar Short Travel Slow Leak Down Lifter Set

· Cloyes True Roller Timing Set

· Katech High Volume Wet Sump Oil Pump

· Trend 3/8s .135 Wall Push Rods

· ptR Carbon Fiber Intake Manifold

· Katech 103mm Throttle Body

· Injector Dynamics 1050cc Injectors

· ATI 10% Underdriven Balancer