550 Performance Street Engine – Mast Motorsports

550 Performance Street Engine

  • Sale
  • $ 15,495.00

Horsepower: 550 hp
550 tq
Idle Quality: Smooth Noticeable Lope

Type: LS2 6.6L
Displacement: 402 Cubic Inches
Compression Ratio: 11.2:1
Bore x Stroke: 4.005 x 4.000
Rev Limit: 7000 RPM
Crank: Callies Forged
Rods: Callies H-Beam
Pistons: CP Bullet
Cam: Mast Custom 3-Bolt Core Cam
Heads: Mast Custom Cast L93 Heads
Intake: LS3 Car Intake
Valve Springs: Mast Beehive

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

Mast Motorsports Handbuilt LS engines feature the best components and are assembled by professional machinist.  All handbuilt engines feature ARP Main Studs, ARP Head Bolts and a balanced and blueprinted block.  

The 550 Performance Street Engine has a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports billet cam core.  The 402 foundation is a honed and decked LS2 aluminum block with a 4.000” forged Callies rotating assembly with CP pistons that is topped off with Mast L93 heads and a LS3 intake manifold.  ARP fasteners are used throughout and Mast pushrods ride on LS7 hydraulic roller lifters.  The 550 Performance Street Engine is the first release of a diverse line of Mast Motorsports hand built Turnkey Crate Engines that are designed for the Hot Rod/Muscle Car market.  The 550 Performance Street Engine peaks at the 550+ horsepower mark and is competitively priced for such a powerful complete fuel injected turnkey crate engine. 

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