Designed for 1987-95 Throttle Body Injected (T.B.I) and Tuned Port Injected (T.P.I) 5.7L S/B Chevy engines originally equipped with centerbolt valve covers. Performer centerbolt cylinder heads are 50-state Street legal and accept factory centerbolt valve covers. The intake bolt pattern utilizes the 1987-95, 73Á angle on the two center bolts. Will Maintain stock compression ratio when used with the recommended head gasket. Made in USA.

Item Code	EDE-608519
Vendor Name	Edelbrock
Product Type	Cylinder Head
Product Model	Performer
Application	1987-95 Chevy 5.7L engines originally equipped with centerbolt valve covers (except Corvette)
Engine Family	CHEVROLET - Small Block
Material	Aluminum
Finish	Polished
Cylinder Head Style	Assembled
Combustion Chamber Volume (cc)	60cc
Intake Runner Volume (cc)	165cc
Exhaust Runner Volume (cc)	65cc
CNC Machined Combustion Chamber	No
CNC Machined Intake Runner	No
CNC Machined Exhaust Runner	No
Combustion Chamber Style	Standard
Intake Port Shape	Rectangular
Intake Port Location	Standard
Exhaust Port Shape	Square
Exhaust Port Location	Standard
Valves Included	Yes
Intake Valve Diameter (in)	2.020"
Exhaust Valve Diameter (in)	1.600"
Valve Springs Included	Yes
Maximum Valve Lift (in)	0.575"
Outside Diameter of Outer Spring (in)	1.460"
Retainers Included	Yes
Rocker Arm Studs Included	Yes
Rocker Arm Nuts Included	No
Rocker Arm Nut Thread Size	3/8"
Rocker Arms Included	No
Guideplates Included	Yes
Guideplate Pushrod Diameter (in)	5/16"
Accessory Holes Drilled	Yes
Valve Guides Included	Yes
Heat Crossover	Yes
Quantity	Sold individually.
Notes	50-state street legal.