As some of you may know (well, most car guys and hobbyists at least), the Chevy small block recently had its 100,000,000 engine block sold. It's one of the most widely used engine blocks for consumers and hot rodders alike. With that announcement, Chevy mentioned that the Generation V small block will soon be making its debut, and with it, Chevy confirmed one feature. It will definitely have direct fuel injection (which means, essentially, the fuel injector will spray fuel directly into the cylinder as opposed to an intake runner, so the intake will be a dry intake). This will allow for higher compression pistons for one, but also more power, better emissions, and fuel economy.
That's not the only thing going on, though. Word is circulating that it will have a re-engineered valvetrain. Apparently, they're going to drop the pushrod style engine for an overhead cam design, which opens the door for much, much higher redline RPMs (think 7500 or more) as well as things like variable valve timing (especially if they go with a dual overhead cam design, which I would assume will be used in more performance-oriented high end engines in the highest trim for cars like the Corvette and Camaro (ZR1 and ZL1 respectively, as well as other GM brands like Cadillac's CTS-V, etc)). With there being no pushrods, you don't have to worry about warping them and having them shoot out of your engine block lol.
The coolest part about all this? It will retain the same cylinder spacing of 4.4 inches, so we will see about the same engine sizes, with more horespower, much better fuel economy, and emissions control.
It will definitely have direct fuel injection (which means, essentially, the fuel injector will spray fuel directly into the cylinder as opposed to an intake runner, so the intake will be a dry intake). This will allow for higher compression pistons for one, but also more power, better emissions, and fuel economy.
yeah, and the better gas mileage comes from the fact that it can run a much leaner air/fuel mixture
The Gen V will be shown off this coming Wednesday. I can't wait to see what new stuff we'll see and how the aftermarket is going to respond. The LS engine has really hit its stride over the last few years, after initially having a questionable future for the aftermarket and engine swap scene. I'd bet the same thing could happen here. AFAIK, the most definite feature about the new engine is that is will have direct injection.
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