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700hp....Pump Gas....Reliable. Don't settle for less! Our Chupacabra Off Road Racing Engine features Mast Black Label LS7 305 heads, the leader when it comes to all out performance.
We know you spared no expense on the other components of your rig so we spare no expense on the components of our engines.
Horsepower:700 hp Torque: 580 tq Streetability:Ok Idle Quality:Rough/Choppy
Other Components: ARP Main Stud Kit Mast Motorsports LS7 427 SS Cam ground on a premium Billet core Mast Motorsports Chromemoly .080" wall 3/8" Hardened Pushrods ARP 12-Point Head Stud Kit Cometic MLS Cylinder Head Gaskets GM LS7 Rocker Arms with CHE Premium Trunnion Upgrade Kit Mast Black Label Valve Covers with Ignition Coils Melling High-Pressure Oil Pump Rollmaster Billet Timing Set with IWIS Chain Johnson Short Travel Link Bar Hydra Roller Lifters Mast LS Oil Pan Complete GM Sensors Mast Premium Spark Plug Wire Kit NGK Spark Plugs The engine is dyno tested with break-in complete, ready to run when you get it! AC Delco Oil Filter
*All hp numbers will be within 2% of the advertised number.
The Chupacabra Off Road Racing Engine has a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports 3 bolt premium billet cam core. This 700 horsepower Off Road Racing Engine's foundation is a honed and decked Resleeve aluminum block with a 4.000” forged Callies rotating assembly with s 2618 Alloy pistons that is topped off with Mast Black Label LS7 305 heads and a MSD Atomic Air Force LS7 intake manifold. ARP fasteners are used throughout and Mast hardened pushrods ride on Johnson Slow Leak Down hydraulic roller lifters. The Chupacabra Off Road Racing Engine is the mid-level offering in our line of Mast Motorsports Off Road Racing engines that are designed for the Ultra 4, Rock Bouncer, Mud Truck markets. This Off Road Racing LS7 based engine utilizes a camshaft that has a strong lope that creates great mid and high RPM power for the customer that will be aggressively racing.
