@@lawrencefelton4246 It's just a one off frankenstein engine. One of one. unless you DIY. This one is going to end up with the DOHC mivec heads so the belt and tensioner will be different from other setups, both DOHC and SOHC
To allow mounting the block in a GTO. spinning it around by 180 degrees, eliminating the problem of the oil filter interfering with the front driveshaft and also allowing the GTO oil filter, oil cooler and front turbo oil feed to work correctly. Along with other mods will allow a 3.8 litre drop in for a GTO. Or in my case a 4.x.
It also gives a 12mm wide oil pump gear instead of the 11 mm oil pump gear. That gives more oil volume required for the added block oil squirters and turbos.