Everyone has heard of the Chrysler 426 Hemi, Chevrolet LS6 454, Buick Stage-1 455, Pontiac 455 HO, Oldsmobile W-30 455, and Ford 427 large displacement V8s. These were some of the biggest legends of the original muscle car era. However there are some small to medium displacement high performance V8s that have been forgotten over time due to hiding in plain view under the shadow of their large displacement muscle car brethren. Here's a list of the 5 best forgotten muscle car V8 engines form the golden era that pack a lot of performance punch and are worthy of honor.