Designed for 1996 LT4 (or) 1992-97 LT1 small-block Chevy engines, RPM Xtreme LT4 cylinder heads are CNC ported in critical areas for improved airflow and peak performance. Features include high-quality 8mm stem stainless steel intake and exhaust valves that feed the high flow intake and exhaust ports. The highvelocity intake and exhaust runners are CNC ported in the bowl area and the intake entries and exhaust exits are CNC profiled for increased air-flow. Combustion chambers are fully CNC machined for absolute consistency and combustion. High-quality conical beehive springs are secured with titanium retainers and valve locks for performance up to .600" valve lift. RPM Xtreme LT4 heads are equipped with guide plates and 8mm stem valves, adjustable (non self-aligning) rocker arms are required. Match with RPM Air-Gap intake #7109, throttle body #5210 and camshaft #2108 for the Total Power Package combo.

Item Code	EDE-61939
Vendor Name	Edelbrock
Product Type	Cylinder Head
Product Model	Performer RPM XTreme
Application	Performance replacement for 1996 LT4 and performance upgrade for 1992-1997 LT1 engines when matched with Edelbrock LT4 intake manifold #7109
Engine Family	CHEVROLET - LT-Series V8
Material	Aluminum
Finish	Natural
Cylinder Head Style	Assembled
Combustion Chamber Volume (cc)	54cc
Intake Runner Volume (cc)	195cc
Exhaust Runner Volume (cc)	75cc
CNC Machined Combustion Chamber	Yes
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	Round
Exhaust Port Location	Standard
Valves Included	Yes
Intake Valve Diameter (in)	2.020"
Exhaust Valve Diameter (in)	1.570"
Valve Springs Included	Yes
Maximum Valve Lift (in)	0.600"
Outside Diameter of Outer Spring (in)	1.300"
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
Quantity	Sold individually.