630 Performance Race Long Block – Mast Motorsports
Cast | Machined | Built in the USA

630 Performance Race Long Block

  • Sale
  • $ 13,250.00

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 Compstar Forged
Rods: Callies H-Beam
Pistons:  CP 2618 Alloy
Cam: Mast Custom 3-Bolt Core Cam
Heads: Mast Black Label LS3 Heads
Valve Springs: Mast Dual

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

This 402 has a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports 3 bolt billet cam core.  The 630 Performance Race Long Block's foundation is a honed and decked LS2 aluminum block with a 4.000” forged Callies rotating assembly with CP 2618 Alloy pistons that is topped off with Mast Black Label LS3 heads. ARP fasteners are used throughout and Mast hardened pushrods ride on GMPP High RPM hydraulic roller lifters.  The 630 Performance Race Long Block is the first release of a diverse line of Mast Motorsports hand built crate engines that are designed for the Hot Rod/Muscle Car market.  This hand built LS2 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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