Vortec heads, without the vortec look?

50 State Legal Replacement Vortec Truck 1996-2002 - GM SB Compatible 3 – BluePrint Engines

5.3-liter Chevy Engine Problems: What Should You Look Out For? - VehicleHistory

Vortec heads, without the vortec look?

JEGS 555-513002 Vortec Intake Manifold For Small Block Chevy - 1996-2002 Chevy Small Block Cast Iron Heads - JEGS - JEGS

Crossfire/Vortec Head & Intake manifold dyno test coming soon!!!!, Page 3

1955-2007 All Makes All Models Parts, E2026, 1996+ Chevy S/B w/Iron Vortec Heads RPM Dual-Quad Air Gap Natural Finish Intake Manifold / Carb Set

ADV Cylinder Heads NEW 5.7 350 VORTEC L31 EngineQuest 906/062 Cylinder Head PAIR 1996-2002 (CORE RETURN REQUIRED) : Automotive

Chevrolet GMC 350 5.7L Vortec 64cc 205cc 202/160 Aluminum Cylinder Heads 96-02

Chevy 350 Vortec Casting # 062/906 Bare