Engine Cylinder Head 1999 Pontiac Firebird The Edelbrock #50459 E-Street cylinder

The Edelbrock #50459 E-Street cylinder 290 Oval Port head is designed for Big-Block applications

Polyurethane bushings reduce bushing deflection found with factory rubber bushings

and carefully stranded into fibers that are woven into a tight weave for maximum strength and flexibility

Everything you need to make it work

5/8" -18 UNF Female (adapts directly to sealing nut on AutoMeter Mechanical Temp Gauges) to M16x1

Engine Cylinder Head 1999 Pontiac Firebird The Edelbrock #50459 E-Street cylinderOur new Edelbrock #61175 Victor Jr. cylinder head is designed for high output 650+ hp Chrysler 426 572 HEMI engines. They feature fully CNC'd combustion chambers and CNC blended seats for optimal air flow performance. This cylinder head also feature a revised exhaust valve angle to accommodate larger intake valves. They also feature brass tubes installed in exhaust pushrod holes to allow maximum clearance with minimal port intrusion.