So - I'm currently collecting bits together to make a 'Lotus Viva' or Magnum out of my currently 1256 HC estate. I'll be using all Magnum brakes, front clip, axle etc, with a Lotus 907 engine and gearbox.
I've got most of the big bits lined up, and I picked up a 2.0 907 engine from a Lotus Elite (cross drilled crank - should be around 160 bhp), twin dellorto 40 carbs (need a total rebuild) and a 5 speed '78 elite box. Also got some elite clocks and a workshop manual - so the collection of bits is starting to take shape.
Now then - I've been talking at length with Steve Hammond about the 2.3 steel slant 4 vauxhall block with the 907 twin cam head conversion, using CF LC pistons with the 907 conrods and some alteration to the oil and water ways on the head. It sounds like a great project - but all the bits and machining all add up. Sooo - before I go too far down one route or another - what do you guys think?
I'm really keen on hearing from anyone who may have attempted this conversion already about the following main points:
1. The whole point in using a 907 engine is that It's a mainly 'bolt on' conversion - I don't want to alter anything on the car shell from original - like any chopping of the firewall etc. It looks like it will be a snug fit on paper - and the 907 was reputedly built on a slant four - but the lotus head is slightly longer so without mocking it up I can't say for sure....
2. Who on here is doing a Lotus/vauxhall slant 4 build? How is it coming along?
As always - any input greatfully recived - and thanks in advance.
P.S. Photos to follow! - and this is the car - viewtopic.php?f=34&t=16262