you will need a new driveline and new brake setup which also are big jobs...
have you done a budget on the whole project, it can add up quick :y:
as they say speed, reliability and cost... pick any 2.
i think the ca18det is a good choice for legal power/weight requirements, cheap to buy and for parts,
it does have some characteristic problems but so do a lot of motors. it makes a fair bit of power stock and can make
loads of power cheaply, just have to make the rest of the car to suit the power which can be expensive.