650 Black Label Road & Track Engine

SKU: 117-302

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Engine pricing & lead times vary - please call 1-866-551-4916 for pricing & delivery estimate.

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Horsepower: 650 hp
Torque:
 570 tq
Streetability: 
Good
Idle Quality: 
Moderate Choppy

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: Callies Forged
Rods: Callies H-Beam
Pistons: Mahle Motorsports
Cam: Mast LS7 427 SS
Heads: Mast LS7 Black Label 285cc Heads
Intake Valves: Hollow Stainless
Exhaust Valves: Solid Stainless
Intake: LS7 Intake
Valve Springs: Mast Premium Dual Springs

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

Summary:
The LS7 SS’s heart and soul is the new GM Performance LS7 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 SS’s foundation is a fully machined aluminum block with a forged Callies rotating assembly with Mahle pistons that is topped off with Mast Motorsports Black Label LS7 285cc 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 strong 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.

 

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