OST-032: Skippy gets a head

[oldeskewltoy]

So... Skippy's head is back and it carries a fresh 3 angle valve job, and a minimal machining - .004".

I only had the head cut .004" so I could keep some of the deshrouding volume - target chamber volume of 36.5cc. I did this so I could keep the static compression high, but manageable @ about 10.7 to 1, and tighten the squish gap by about 20%

Specs 3.209" bore, 3.0315" stroke, .036 gasket, deck is .001 (under), piston volume 2/10 of a cc crown, with a 36.5cc chamber.

preparing to check chamber volume.... note the wooden shims under the head to get it at a slight angle





measuring chamber #1....




and the result......??????? Bullseye 36.5cc!!





The chambers are now perfect, Skippy's head is now ready for reassembly....




"Perfect"? It appears that chamber #4 is tight, or so it seems in the photo. It WAS a bit tight, I worked the chamber walls a little adding a 1/10 of a cc to the chamber.


This was a partial head when I began, the valves in this head were not originals to this head, so in this case although being re-assembled, I fully expect SOME dis-assembly of the valves for those needing to be tipped.


More to come....