I haven't seen the Moebius engine in person yet but the Lindberg engine would work just fine, the differences between the 413, 426, 426 stage II and III Max Wedge engines was all internal so it doesn't matter much, the option engine in the AMT 49 Mercury is a Max Wedge.
Here you can learn everything you need about the Max Wedge engines. http://maxwedge.com/
The AMT 49 Mercury was first issued in 1962 or 63 so it would probably have been a 413 Max Wedge, the 426 Max Wedge came 1963 and was replaced with the 426 Hemi sometime in1964...but the 413 and the 426 looks the same so it really doesn't matter.
No I haven't yet...but one of these days...maybe. You're welcome. Me neither but it depends on what you want to use the carbs for, if you are going to have an air cleaner the carb don't have to have much detail as most of the carb it is hidden under the air cleaner, but if you want to do for example a race car with a naked carburator the style and venturi detail is very important for the right look.
Well the enigne is a good representation of a DS14 with the distinct V shaped valve covers so it isn't bad for what it is, it's just not up to date for this truck as Scania hasn't made the DS and DSC14 engines for quite a while now. Italeri does this all the time with their truck kits, they don't update the drive train and sometimes chassis to spec when they do a newer truck kit and nowadays they mostly do 2 axle Euro style single drive tractors, we don't have much of that here as most of our trucks are 3 axle single drive, 3 axle dual drive or 4 axle dual drive and mostly straight trucks with a tag along trailer, 5th wheel tractors with trailer are not that common here and most of the ones there are are 3 axle single or dual drive.
First time I noticed that Italeri didn't bother to do accurate truck kits was back in the late 80's when they first did the Volvo F16, they updated the cab but everything else was exactly the same as in their previous F12, the engine should have been the new D16A wich first came in the F16 instead of the old TD120F they used from the previous F12 kits, these engines are also totally different. Today Volvo doesn't make the old TD100 and TD120 engines anymore, they offer D12 and D16 inline 6 engines in their newer European FH series trucks and I believe you can get them in the US Volvo VN series too.
Same with Scania, Italeri updated the cab to the newer 143 and later 144 and 164 series specs but didn't bother to update the drive train to the newer Intercooled DSC14 for the 143 and 144 series and DC16 for the 164 series at the same time, no they used the old outdated DS14 from the earlier 142 series and it looks like they still use the DS14 in the R series truck kits. Same as with Volvo, Scania doesn't make the old DS11, and DS14 or DSC14 anymore, now they offer the new totally different DC13 inline 6 and DC16 V8 in the R series long haul and heavy trucks.
I had quite a lot of Italeri Scania and Volvo kits as I live in Sweden and in the town where Volvo makes most of the cabs for their trucks, but I lost interest when the kits wasn't accurate and sold most of them, the only newer Italeri truck kits I have bought after that are the Volvo VN 780 wich unfortunately doesn't have an engine and the Peterbilt 378 Long Haul.
The most popular Holley carburators are the 4150 series, the 4160 series and the 4500 "Dominator" series, and they all look different. The Glidden T-Bird and all other Pro Stock and Pro Sportsman kits from Revell has Holley 4500 Dominators and they are too large, many use them on all kinds of drag racing cars and other race car models but Dominators are not allowed in Super Stock.
Most of the Revell carburators are not that good and lacks detail, almost none of them has any venturi detail at all except for the Dominators. But the best 4160 carbs with good venturi detail I have seen so far in a kit is from the AMT 60 Ford Galaxie Starliner Custom or 2 'n 1 kit, and decent 4160's in the AMT 66 Ford Fairlane and 67 Mercury Comet kits. Calnaga Castings also has some 4160 carburators in resin, they are labeled as Holley 650's.
The 413 and 426 Max Wedge RB engines was for racing only with a cross ram intake manifold and dual 4 bbl carburators, there were many differences in the inside but otherwise they look like any other R/RB 383-440 wedge engine. the RB has slightly taller deck than the B but it's almost impossible to see on a model, the early R/RB and the Max Wedge had 4 bolt valve covers and the newer had 6 as 2 bolts were added in lower front and back of the valve cover.
Nice progress. It's unfortunate that Italeri didn't bother to do a correct engine for this kit (as with many of their other releases) this engine is the same old DS14 V8 they had in their first Scania T142 with some new parts to make it look more like a newer engine, a correct Scania 730 horse power DC16 V8 looks totally different from this one, just Google Scania DC16 and you see what I mean. If Italeri did correct truck kits in every aspect I would be all over them, but as it is now it's no fun building replicas that you know is incorrect from the very beginning.
Well I have never seen the modern style CalTrac traction bar with the front triangular bell crank they have now in a kit. But I have seen traction bars similar to them in kits, for example AMT 57 Chevy has a pair but they are not that exact style.
Italeri should have had a N14 if they had done it right...this engine is not a N14, it's just their old NTC 400 that they changed some parts on from a water to air aftercooler to an air to air intercooler, otherwise it looks like an ordinary NTC. So the Revell AG NTC 475 Twin Turbo is probably the most modern Cummins engine in a kit, AMT has a NHC 250, a NTA 370, and a NTC 350 but they are older than the Revell engines. On the aftermarket you can get correct N14 and Signature Series ISX 600 resin engines, both available at Auslowe
The Ertl Great Dane reefer trailer has the right style Thermo King unit, a similar one can also be found on the Heller reefer trailer, the AMT Fruehauf reefer trailer has a Thermo King unit but it's an older style. So the Ertl Great Dane is a good choice to start from, it has a side door as the BJ trailer had, it's a bit too far back tho' so to be correct it has to be moved forward slightly, the vertical side ribs on the box sides are too few but can be fixed with Evergreen half round bar, the reefer unit also has to be corrected some as the control panel on the kit unit is on the wrong side.