LSX-DR Cylinder Head

P/N 19330895

• Rough machined seats and guides for cylinder head porters to work their magic!
• 356-T6 aluminum racing head
• 5/8" thick deck
• LSX-DR rectangle intake port design - requires LSX-DR intake manifold
• LSX-CT/DR spread port exhaust port pattern
• Cast-in down-nozzle bosses (not machined)
• Designed for up to 2.280" intake and 1.620" exhaust valves (4.165" minimum bore)
• Machined for 1.660" valve springs. 11 ° valve angle
• Minimum 4.125" bore
• Requires 19201808 shaft-mount Rocker Kit
• Capable of over 900 naturally aspirated horsepower!
• The fully CNC ported versions of this head come installed on LSX454R engines