@Jody_Seal New ARP head bolts sequentially torqued to specs (though 70 ft-lbs on the final) primed the lifters by spinning the oil pump with a flat head bit/extension on a power drill prior to installing the distributor shaft. Adjusted the valve lash to zero then a full clock-wise rotation on the rocker arm nuts (by the method depicted in the PCM manual). Then with an oil can lubed the valve stems & rocker arms as much as possible, hand turned the crank with a wrench a few revolutions.
The motor fired up on the first crank and that first minute of operation on the youtube video it did sound very rattly, but by minute 3 sounded very smooth. Hand adjusted the timing to idle smoothness and acceleration; it's actually running and sounding as strong as ever. No leaks yet, oil remains clear, CHT's above the plug from 168-176F on all 8 at idle after running passes at full operation. So far, so good, but who knows it could all fall apart or blow-up!
Wouldn't recommend that anyone try it, but it's good winter therapy.
@gregy, the '03 Excalibur with MEFI and cable throttle had to be converted to E-Controls ECM with DBW, it involves exchanging the wiring harness, new throttle body, mounting a few brackets to accommodate the transposed throttle cable to the potentiometer, the bracket for the ECM, fuse box, etc. Not too difficult if one has decent photos or another DBW Excalibur to examine.
After that, the ZO install is easy.
Although in good conscience; I'd have to recommend having a professional do the upgrade, especially if no access to another slalom boat.