Suitable for all A+ Engines from 1275 to 1380cc. 11 stud.
37 mm x 31mm offset exhaust valve for increased flow, Outright Race head 1.5" inlet ports fully throated with raised inlet roof for maximum air flow Optimised exhaust ports.Available 9 or 11 stud fitment. Use large port manifold gasket
NB- Availability of parts could result in change of specification once undertaken
Please state cc when ordering range from 16 cc to 24.5cc
