J.W. Burleson photo / Boquillas del Carmen, Coah.

Tuesday, October 26, 2021

See ya later: Chevrolet's last V8

 






The Chevrolet Performance division has revealed the biggest and most-powerful naturally aspirated V8 engine it has ever built, even as General Motors accelerates its transition toward electric power.

from The Drive: "To start, the crankshaft and connecting rods are forged steel, and the pistons are forged aluminum. The tall-deck block itself is made from burly cast iron, and features four-bolt main caps similar to the 572 Big Block in the COPO Camaro. It's topped by aluminum heads with symmetrical ports, CNC-machined from the factory and designed to enable identical flow to every massive cylinder. For some context, a single cylinder in the ZZ632 is the same size as the entire engine in a top-trim Chevy TrailblazerThe fuel this engine uses is, as compared to everything else about it, very normal. It's regular 93 octane that you can get from most gas stations. It's injected electronically at the ports, as opposed to being spat into the cylinders via a direct injection system. Combine this fueling with 12.0:1 compression, a massive single plane intake manifold, and a 7000 rpm redline, and 1,004 horsepower seems very attainable indeed, as does the engine's 876 lb-ft torque figure. 



No comments:

Post a Comment

Note: Only a member of this blog may post a comment.