Just uploaded pics to #5939's photo album as follows: (I thought Dave Swingle was going to purge the photo albums. Since I cleaned #5939's out already, hopefully he'll leave it alone...) B27A_1 -- Overall pic of the engine with LP carb attached (this engine was destined for maritime use). A Weber gasoline carb will bolt right up in its place. B27A_2 -- Closeup of the single venturi intake manifold. This is a single plane manifold. The carb spacer is multi-positionable (see pic B27A_5). Notice how accessible the ignition distributor is. B27A_3 -- Closeup of A series heads, never drilled for fuel injectors. I like the cylinder numbers cast into the head (PRV tuneup for dummies). Cylinder numbers are also cast into the valve covers. B27A_4 -- Closeup of hose clamps behind the water pump, accessible with the intake manifold in place. Of course removal is so fast and easy, why bother reaching in there? B27A_5 -- Underside of the intake manifold showing multi positionable carb spacer. Notice also the water distribution pipe was never drilled for various sensors. B27F_1 -- B27 F series single piece upper air assembly. Compare this to the nearly identical upper air assembly on my Renault Z7V. B27F_2 -- Auxiliary air valve, used for fast idle before the adoption of CIS. Note the CPR has no provision for full throttle enrichment (is 004 series, correct for B27F). B27F_3 -- Access hole for a cam driven mechanical fuel pump. I have no idea what this particular valve cover is doing on my F series engine! Everything else on it is correct per Volvo factory literature, so I can only assume that a previous owner swapped the original F series cover with an A series for some reason (warped?). If/when I install the above A series engine in a DeLo, I'll use this cover and a mechanical fuel pump. Note that although I've referred to my A series engine as a "B27", it could well be a B28. There are no engine ID plates to tell. Valve covers are interchangeable, so their cast numbers won't help me either. B27 and B28 compression specs are the same, so I can't determine with a compression test. If anyone knows some other way to differentiate with the heads still in place, please let me know! Bill Robertson #5939 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/