Edelbrock Performer Aluminum Head Street Legal w/ Exhaust Crossover

All Edelbrock aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability, plus hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance.

INSTALLATION NOTE: Edelbrock head gasket sets recommended.  Complete cylinder heads are assembled and prepared for installation right out of the box.  Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.  Use Edelbrock Step Washer Kit #9693 on 1967-69 engines with 7/16" head bolts.  Deck thickness: 5/8", rocker stud diameter: 3/8", pushrod diameter: 5/16" (width of slot in guide plate).