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630 Black Label Street Engine
$ 21,000.00

630 Black Label Street Engine

+

Only left in stock

Horsepower: 630 hp
Torque: 
575 tq
Streetability: 
Excellent 
Idle Quality: 
Smooth Noticeable Lope

Type: LS7 7.0L
Displacement: 427 Cubic Inches
Compression Ratio: 11.4:1
Bore x Stroke: 4.125 x 4.000
Rev Limit: 7250 RPM
Crank: Forged
Rods: Forged H-Beam
Pistons: Forged 
Cam: Mast LS7 427 HO
Heads: Mast Black Label LS7 305 Heads
Intake Valves: Solid Stainless
Exhaust Valves:
Solid Stainless
Intake: GM LS7
Valve Springs: Mast Premium Dual Springs

*All hp numbers will be within 2% of the advertised number.  

The LS7 HO’s heart and soul is the Factory Mast aluminum block. This LS7 engine family utilizes a Mast Motorsports-engineered camshaft that is custom ground on a Mast Motorsports 3 bolt cam core. The 427 HO’s foundation is a fully machined aluminum block with a forged Callies rotating assembly with that is topped off with Mast Motorsports Black Label LS7 305cc cylinder heads and a LS7 intake manifold. ARP fasteners are used throughout and Mast Motorsports Black Label pushrods ride on GM LS7 hydraulic roller lifters. This hand built LS7 based engine utilizes a camshaft that has a moderate lope that creates great mid and high RPM power for the customer that will be aggressively racing their vehicle, but still wants great street manners for a daily driver.