Vortec heads, without the vortec look?

Engine Quest CH350I & Other cast heads - Don Terrill's Speed-Talk

EngineQuest EQ-CH350I - IMCA Sanctioned Sport Mod Head

EngineQuest Hybrid Vortec Heads - Anyone familiar? - Third Generation F-Body Message Boards

EngineQuest, Chev SB Vortec, Performance Cast Iron Heads, 170cc/58cc, Straight Plug, Bare, Each-Competition Products

GM Chevy GMC 4.3L 262 V6 Astro S10 Vortec Cylinder Heads #113 Bare - EQ Cores & Recycling

NEW 2 GM CHEVY VORTEC 350 5.7 CYLINDER HEADS

97-2015) New SBC 5.7L/350 V8 Vortec Marine Cylinder Heads - boat parts - by owner - marine sale - craigslist

EngineQuest Chevy 5.7L 350 Vortec Cylinder Head

World Products 014150-50 – Cylinder Head Cast Iron Chevy Small Block MOTOWN 220cc 50cc 23Degree 2.080″ x 1.600″ Angle Plug, Bare Castings – Bill Mitchell Products

GM5.0 GM305 V8 Cylinder Head Complete Intake 1.84/1.94 for GM - China Cylinder Head, GM5.0 305