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Americas favorite high-performance cast iron small block cylinder head offers big power and bigger value. The Vortec cylinder heads fast burn

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SBC SB Chevrolet 350 IMCA Assembled Heads 1969 - 1985 - EQ Cores & Recycling

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The 185 Vortec has taken the Vortec head to the next level. Bigger runner and bigger valves mean more power! Just ask dirt track racer Shawn Guffey,

Series One 185 SBC Cast Iron , (Sold in Pairs)

GM 383 Dressed Engine Cast Iron Vortec Heads Flat Tappet Cam HP & Torque: 405 HP / 440 FT LBS - American Powertrain - TREMEC Conversion Specialists

Engine & Transmission - Engine - Cylinder Heads - Cast Iron Performance

Small Block Chevy Cast Iron Vortec Cylinder Head170cc Intake Ports64cc Combustion Chambers1.940'' Int/1.500'' Exh Valves.475'' Max LiftStraight

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EngineQuest Engine Bare Cylinder Head CH350G; Performance 170cc Cast Iron 62cc for Chevy 5.0/5.7L Vortec

World Products 042660 – Cylinder Head Cast Iron Chevy Small Block S/R Torquer 170cc 67cc 23Degree 2.020″ x 1.600″ Straight Plug, Bare Casting – Bill Mitchell Products

Chevy SBC 350 Vortec 180cc 64cc Straight Cast Iron Bare Cylinder Head