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Splayed-Valve Aluminum Cylinder Head

Original price was: $1,899.62.Current price is: $1,752.41.

  • Extremely aggressive, all-out competition head
  • 240cc “as-cast” intake ports
  • 78cc “as-cast” exhaust ports
  • 45cc “as-cast” combustion chambers

 

Semi-Machined Splayed Valve Aluminum Cylinder Head

P/N 24502517

– Semi-machined aluminum race head
– 240cc “as-cast” intake ports
– 78cc “as-cast” exhaust ports
– 45cc “as-cast” combustion chambers
– Same casting as P/N 12480146

Aluminum Splayed Valve Race Head Technical Notes:

– Made of 355-T7 aluminum
– No valve seats or guides provided
– Extra-thick decks for angle milling or heavy flat milling
– Extra port material (0.240″) for professional porting
– Completely revised intake and exhaust ports provide ultimate airflow potential
– 45cc “as-cast” combustion chambers
– Modified valve angles (16° x 4° intake, and 11° x 4° exhaust)
– Designed for longer-than-stock 2.200″ and 1.650″ valves
– Valve spring pads accommodate 1.625″ diameter springs
– Revised location angled spark plugs (14mm, 5/8″ hex, 3/4″ reach, gasketed plugs)
– Designed for aftermarket shaft-mount rocker systems
– Custom-fabricated intake manifold required
– P/N 10185042 intake manifold gasket required
– Valve cover gaskets P/N 10185043 required

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.