LS3 416 Crate Engines – Mast Motorsports
Cast | Machined | Built in the USA

LS3 416 Crate Engines

The LS3 416's heart and soul is the new 4.065 aluminum block.  The LS3 designation has a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports LS3 billet cam core.  The 416 foundation is a honed and decked LS3 aluminum block with a 4.000” forged Callies rotating assembly with Mahle or Diamond forged pistons that is topped off with CNC LS3/L92 or Mast Black Label heads and a LS3 intake manifold.  ARP fasteners are used throughout and Mast pushrods ride on LS7 hydraulic roller lifters.  The LS3 416 is just one of a diverse line of Mast Motorsports hand built Turnkey Crate Engines that are designed for the Hot Rod/Muscle Car market.  The LS3 416 starts at the 550 horsepower mark and is competitively priced for such a powerful complete fuel injected turnkey crate engine.