the question is are they any good is it worth buying one? does anyone know someone who has one and have they had any problems with it? I was going to order the 2110cc plus ultra flyer gear box - but I cannot find anyone who has used them before. http://www.limebug.net/product/view/2829/2027cc-2387-cc-monster-series-turnkey-motors-772
I wondered what a ‘moster’ engine was – it’s most expensive. Have you considered a Subaru conversion?
You might be better off dealing with a builder. Your link shows a good deal of parts, but I see no mention of the all important cam. One has to be very careful buying a T1 engine as 99.9% of them are specced for a bug not a van. I built a 2020cc bug engine for my bus (as it turns out). I had a call from the chap I sold it to yesterday - he's installed it in a Beetle with a 1300 gearbox. He says it takes about 10 seconds to accelerate from 45mph to 100mph in 4th (I didn't ask him what rpm this is - I hope he has a rev counter). Apparently you might as well just pull off in 4th, he sounded happy when I spoke to him yesterday. He has video which I'll post up when I get through the email. I sold it with 3-4,000 miles on it, rolling roaded at 134HP peak power for £1750 and it didn't cost much more to build. I could build it again with all new parts for less than £2.5K so £6K sounds a bit over-specced with pointless parts to me. @paulcalf has a great T1 bus engine.
^ So now I'm building a 2.4L T4 engine for my bus. We're expecting £140+HP but with much more torque than the T1 202cc. Starting from scratch - no engine parts or tin etc whatsoever. It'll come in at about the same price - £2.5K max - that's turnkey with powder coated tins and fan housing, second hand std exhaust system, I already have carbs and filters, but not manifolds or linkage. Everything bar the carbs and filters were obtained for this build from the £2.5K budget.