Description

The modification includes: Replacing valve guides / cleaning services / renewing studs / Port sizing / machining valve covers double ignition / Drilling additional spark plug threads as M12 version / Drilling MFI connection. Price is for a set of 6 heads All the above machining and modifications can also be done separately. Please contact us for the pricing. * The machining of the heads has a risk that the cooling ribs could break during the modifications. This responsibility lies with you.