Add Yahoo as a preferred source to see more of our stories on Google. Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up ...

Some engines just won't go away. Back in the May '11 issue, we brought you the first part of our budget-built 400 small block Chevy. The idea was to bolt a set of iron Vortec heads on a junkyard 400 ...

In the early-'90s, GM introduced the Second-Generation LT1 small-block. It featured reverse-flow cooling and an aluminum cylinder head with a new port configuration. In essence, the company created ...

GM small-block Chevy Vortec heads deliver great performance per dollarbut theyre still only based on production pickup-truck castings. The iron heads are heavy. They have press-in rocker-arm studs ...

What happened to the big power numbers of the 454? The last generation big-block by GM (Vortec 454) leaves much to be desired when it comes to output. The Vortec big-block was gifted with a sequential ...

In general, the General Motors Vortec 5.3-liter V8 is a powerful, dependable engine. If you're not familiar with General Motors' Vortec engines, they are a family of small-block V8s that GM put into ...

Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up their budget Chevy 305 small-block (SBC), or the larger and more popular ...