Chevrolet’s Chevelle Slammer concept combines hot-rod style with modern performance and technology, with the all-new LT376/535 crate engine and SuperMatic 4L75-E automatic transmission.
The LT376/535 crate engine and SuperMatic 4L75-E transmission are offered as a Connect & Cruise package from Chevrolet Performance that includes the controllers and harnesses.
The 2017 Chevrolet Performance catalogue features the new LT376/535 along with the industry’s widest range of crate engines, including Chevrolet Small-Block, Big-Block, LS- and LT-Series engines. The catalogue also includes COPO Camaro and circle-track racing engines.
From every angle, the Chevy Chevelle Slammer design is all about one thing: stance. It’s low, raked and dripping with hot-rod attitude. The chassis was modified to accommodate large 18-inch front and 20-inch rear polished wheels, while almost every inch of the vintage body was subtly revised to give it a smooth, custom appearance, but not at the expense of its classic lines.
An air suspension system alters the stance at the push of a button, including dropping it all the way to the ground for maximum profiling when on display. The car also features a Gen Six Camaro-based performance brake system, including 6-piston front callipers.
And while the exterior exudes attitude in all black, the interior makes a searing statement in Adrenaline Red. Everything from the instrument panel, door panels and carpet to the headliner, interior panels, console and seats is trimmed or painted in Adrenaline Red.
The seats come from a 2016 Camaro, while a set of custom gauges in the instrument panel were selected for their compatibility with the electronic signals from the Chevrolet Performance powertrain controllers.
Chevrolet’s all-new, direct-injected LT376/535 crate engine builds on the Gen V Small-Block family’s technologies and takes them to the next level, leveraging CNC-ported heads and the high-lift LT1 Hot Cam to deliver 535 naturally aspirated horsepower.
Chevrolet Performance engineers developed the high-performance camshaft-and-cylinder-head package in-house, leveraging the design elements of the LT1’s advanced combustion system to channel airflow through the optimised cylinder head ports.
The Chevrolet-developed camshaft profile extends the horsepower-building range of the engine higher in the rpm band, pushing it to about 6800rpm while still maintaining strong low-rpm torque. Direct injection enables a high 11.5:1 compression ratio that contributes to the engine’s strong horsepower-to-displacement ratio of 1.43:1, or 87bhp per litre.
The Chevelle’s crate engine is paired with Chevrolet’s new SuperMatic 4L75-E electronically controlled 4-speed automatic transmission featuring a torque capacity of 881Nm.
That exceptional capacity makes it suitable for many of Chevrolet’s highest-output crate engines and a great alternative to the 4L80 series when packaging space is an issue. The 4L75-E’s “barrel” is significantly smaller than the 4L80 series, making it easier to install in many smaller vehicles. It is also lighter, which enhances overall performance and vehicle balance.
The new 4L75-E is based on the already robust design featuring five-pinion gearsets and other strengthened components. It also includes a unique high-strength input housing, a higher-capacity servo, heat-treated stator shaft splines, induction-hardened turbine shaft, eight-friction-plate 3-4 clutch, larger 2-4 band and specific valve-body calibration. 
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