Description Reviews Revolution Mini Works has developed a head so good it's been nicknamed "The Jesus Head." This CNC'd cylinder head uses the best components available. It comes standard with Black nitrided 1.8mm oversized intake valves, 2.3mm oversized Inconel exhaust valves. Each head is CNC'd so each and every cylinder head is exactly the same for flow. Something that can't be done by hand! Supertech makes our valve train with titanium retainers and dual valve springs. The lightest in the industry for high RPM engines. All our race cams have been tested on these springs so you can rest assured there are no issues with valve float or coil bind. Our cylinder heads are used in the Grand Am winning Race Mini's along with our Race cams and Race headers. All intake seats will be replaced with bigger seats to better handle the big valves and are finished on the industry leading Serdi Machine. Each head is vacuum checked before heading out the door. Inconel valves, as well as other options, are also available. Give us a call for options. We have seen amazing numbers from this head: over 250whp with RMW head, RMW cam, RMW header and a custom RMW tune! The cost includes the $400 core charge that is refundable upon receipt of "Good" core. You will be refunded when we receive your core in good condition. Note: Car needs injectors and tune to make this all work correctly. Ask us about what we can do for you.