2015 saw Tipperary Raceway and S.O.R.A introduce the 2 Litre Hot Rod class. Since then the class has grown greatly.
The 2 Litre Hot Rods were introduced in 1986 to bridge the gap between National Hot Rods and Stock Rods.
For current class rules please check the links shown.

Other websites which may be of interest
http://www.spedeworth.co.uk/rulesdownloads/2018%202.0%20Hot%20Rods%20as%202017-12-04.pdf