Get Your Engine Ready to Rumble with ATK High Performance Cylinder Heads

There’s no need to hunt the local boneyards or scour online ads to find a decent set of cylinder heads when ATK’s High Performance Cylinder Heads are just a click away. With features like all-new castings for strength, the latest port designs for maximum efficiency and airflow, and quality valvetrain components, these ready-to-run heads have your power needs covered. 

Features include:

• A356 aluminum construction
• Stainless steel intake and exhaust valves
• Manganese bronze valve guides
• Viton® valve stem seals
• Powdered metal valve seats
• 7-degree steel or chromoly retainers (depending on application)
• CNC-finished faces and bolt holes for extreme accuracy
• Exhaust ports raised (some models) for better performance and header fitment

ATK High Performance Cylinder Heads are cast, machined, and assembled in the USA and accept all factory components without modification. They are available for the following engines:

Small Block Chevy
• 302-400 with 219cc intake runners 

Big Block Chevy
• 427-454 with choice of 290cc or 315cc intake runners
• 500-plus stroker engines with 360cc intake runners 

Chevy LS
• LS1/LS6 with 250cc runners
• LS3/L92 with choice of as-cast 255cc, 260cc CNC-ported, or 270cc CNC-ported intake runners 

Small Block Ford
• 289-351W with choice of 185cc or 205cc intake runners

SEE THE ATK HIGH PERFORMANCE CYLINDER HEADS AT SUMMIT RACING