Boost-Ready, Dry-Sump, LT4 Long Block, 376 or 416 ci

GM's aluminum LT production block has proven itself to be a strong performer.  We see this long block as being able to reliably handle to 1,200 hp.  That could not be said about its aluminum LS predecessor. We switch to an aftermarket LS block over about 750hp. This is a high-cost upgrade.  An LT's design provides a number of other benefits over its LS predecessor. The key characteristic of an LT is direct injection.  This provides greater control over the ignition event allowing better tuning, a little more compression and more horsepower. The blocks come with piston oiling provisions making this a low-cost upgrade which we include as standard here. Because GM sells a lot of dry-sump LT vehicles, this too is a more affordable upgrade. This LT4 long block benefits from our state-of-the-art CNC block machining which provides a level of precision and performance far beyond OE (see video below). All blocks are individually serialized on our 4-axis CNC for traceability. Our cylinder head m