Request to Add Honda K23 Spec Line
#30682 from David Mead · Rule change · TB 21-08 (2021-08 Fastrack)
In STU, classify Honda K23 as follows, effective 1/1/2022:
STU Maximum Displacement (cc's) Minimum Weight Notes
Honda K23 2354 Chart May use K24 block. Must maintain all K23
internals. Must use K23 cylinder head.
Maximum bore of 87mm.