Decoding the LT4 Crate Engine

lt4When Chevrolet unveiled its resto-mod concept during the SEMA show featuring the Custom 1970 Camaro RS, people got to talking. The vehicle that featured the perfect marriage between vintage and tech was a real beauty but more than appearances, its LT4 crate engine has to be its biggest asset. Today, classiccarlabs.com tells us more about it.

Dubbed as General Motors’ most powerful engine to date built for ultra high performance vehicles, the LT4 is currently used in the Corvette C7 Z06 and third-generation Cadillac CTS-V sedan. By 2017, it’s also likely to be installed and built into the 2017 Camaro ZL1.

Produced as part of the company’s 5th generation Small Block engine family, the much celebrated powerhouse of a machine displaces 6.2 liters, has eight cylinders in a V-shaped layout and features a purpose-built supercharger. If that’s not enough to catch your attention then we don’t know what will. Certified car enthusiasts have been setting their eyes on it the moment it was released.

The LT4 crate engine also boasts of several other features. It’s got a dual brick air to liquid intercooler, a dual pressure control oil pump, a dual-equal cam phasing,  a high pressure fuel pump, a next generation Eaton supercharger, a standard dry-sump oiling system, a variable displacement dual pressure control vane pump with increased flow capacity, an active fuel management cylinder deactivation, an aluminum balancer for reduced mass, highly machined forged powder metal steel connecting rods, lightweight titanium intake valves, PCV integrated rocker covers, Rotocast A356T6 aluminum cylinder heads that proved to be better at handling heat compared to others of its kind, stainless steel exhaust manifolds, and unique and durable structured forged aluminum pistons.

What makes the LT4 crate engine an even awesome find is the fact that General Motors manufactured it in such a way that it’s bound to shatter expectations. At first, aficionados and critics didn’t believe the announcement but leave it to GM to prove them wrong. They weren’t kidding when they said that its’ going to be a 650 horsepower monster that comes in the most compact and lightweight version.

Perhaps the only drawback which isn’t really a disadvantage to begin with is that the LT4 with its with aluminum block and heads weighs 529 pounds. That’s a slightly modest increase compared to its LS7 predecessor which only weighed about 454pounds according to classiccarlabs.com.

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