E-Street Cylinder Heads BB Chevy Oval Port - Satin
E-Street cylinder 290 Oval Port heads are designed for Big-Block applications. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. For use on pre-pollution controlled vehicles only. INSTALLATION NOTES: bull; Match with Edelbrock head gasket sets. bull; Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat bull; Designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range bull; Includes hardened spring cups and Heli-Coil; threaded inserts in the rocker stud bosses for increased strength; these are the details that most low-cost competitors leave out of their heads. bull; These cylinder heads are sold separately.