I am intending to rebuild my engine soon. I have a 1.4 SR nova. I have been given a spare 1.3 engine so I am intending to build a 1.4 bottom end with a 1.3 head, matched manifolds/gaskets and the intention of changing the manifolds/carb at a later date. Am I better to use the 1.3 or 1.4 camshaft? are they the same re mounting etc?
The cams are interchangeable yes. The 1.3 cam has 6.0mm of lift on the inlet and exhaust sides, whereas the 1.4 (14NV) cam has a slightly higher lift of 6.12mm. I'm not sure what the differences are in duration of the cams. Someone on here once said they were the same - if that's the case, the 1.4 is the better choice