GM Performance Parts sweetened the deal even further by announcing that each head could be obtained fully assembled for approximately $250. The cast-iron Vortec heads were released in 1996 and ...

Still, it was hard to beat some of the aluminum heads at their own game, until late last year, when GM Performance Parts introduced the Vortec Bow-Tie head, an all-new, iron small-block cylinder ...

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 ...

However, it didn't take long for performance buffs to discover the irony that these production heads were better than the popular Bow Tie offerings. The fact is Vortec heads breathe like crazy and ...

Go inside GM’s Performance and Racing Center to check out the new 1,004-hp crate engine’s revolutionary cylinder heads.

a handful of companies are making performance upgrades for this beast. Aluminum heads, stroker kits, camshafts, and intakes are among the bolt-on parts that will step up the Vortec 8100's game.

GM branded their truck and SUV engines "Vortec" and kept the LS label for high-performance cars. Indeed, Vortecs and LS engines are similar enough to have interchangeable parts, making Vortecs ...

It’s known by several names: The LL8, Vortec 4200 ... connecting rods and Diamond pistons in addition to a head ported by Snyder Performance, Schneider Racing 66RH camshafts, Crower valve ...

The Vortec 5.3L V8 LMG was an engine produced ... Variable valve timing helps the 5.3L optimize performance and efficiency and reduce emissions, while GM’s Active Fuel Management cylinder ...