40mm intake jugs.. Are port timings the same as the 32mm?

I was just doing a little ebay shopping and saw some cylinder jugs for sael so I clicked the link and noticed right away in the pic that the intake was considerably wider, read the description and saw that it was BikeBerry's ebay listing and they did specify that these jugs do have the 40mm intake bolt spacing. They sell them on ebay and on their site for $27.95 so I've been thinking about getting one for my next engine build. If I do decide to grab a few of these, they'll get more porting before they hit the street but it's nice to know how they're setup before any cutting begins.

Yeah.. a lot of vendors do steal pics from other vendors making it really confusing to who has what... What appeals to me the most about the 40mm spacing is that it's a LOT easier to make intake manifolds that match a wide port job. You can make nice big ports on the 32mm jugs but there's the bolt spacing limiting you to how wide you can go and still bolt a matched manifold to it.
in an extreme case you could install aluminum bolts into the holes with red locktite, cut them off flush then re drill and tap them out further but that can be a hassle drilling since the aluminum bolts are high grade aluminum and the drill bit can wander to the path of the least resistance... it can still be done but needs to be jigged up and gotta use a drill bushing to keep the bit from wandering. Another way to do it is make a flange out of 1/4" thick aluminum and then install with countersunk screws with studs coming out from the other direction... still a lot of work compared to having a jug with the wider spacing to start with.

What I think would be really helpful is if the vendors would take a picture of the inside of the jug so we can see which ports they're using. The slanted transfers work ok, but not as easy to cut and modify as the flat across ones...

When we're talking blowdown, the flat transfers definitely make it easier to add blowdown since it's the exhaust port roof and the transfer roof hight that comes into play, but there is plenty enough room to add at least 3 more mm if not more blowdown.

Looking at another jug I got over here, there's also room for aux exhaust ports but one side would be very tricky to cut out, the other side could be drilled from outside the exhaust port but the one side would have to almost be done completely from inside the bore. This wouldn't add blowdown percentage, but it would help bleed off the exhause pressure from the cylinder faster for a similar effect.

I'll get one from BikeBerry to see just what they got, but if it's not what I'm expecting I may need to get one of yours.