
Dart's LS1 Cylinder Heads are cast from the same virgin 355-T6 aircraft alloy that is used in Dart Pro Stock heads. These LS-style heads are available with high flowing as-cast ports. Standard valve angle and spacing is retained for bolt-on compatability. As-cast heads are bowl blended on 5-axis machining centers. Manganese bronze valve guides are used for long life, and hardened valve seats provide durability with unleaded fuels.
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