Let's clear it up right here. The Chevy 409 is no more of a truck engine than the Chevy small-block 350 or big-block 454. Just because GM used each of these engines in heavy-duty commercial ...

In the Aug. '08 issue, we did a full rundown of Edelbrock's new aluminum Performer RPM 409 cylinder heads for Chevy W-series 348/409 engines, in addition to a line of foundry-fresh dual-quad intake ...