rickb1 Posted May 12, 2023 Share Posted May 12, 2023 can i run a b18 non vtec in my 91 civic? Quote Link to comment Share on other sites More sharing options...
Members Mike W. Posted May 15, 2023 Members Share Posted May 15, 2023 On 5/12/2023 at 11:01 AM, rickb1 said: can i run a b18 non vtec in my 91 civic? Page 6 of the ST5 and ST6 Rules has your answer. https://nasa-assets.s3.amazonaws.com/document/document/23649/2023_ST_5-6_Rules.pdf 3) Engine and head swaps are permitted, but the donor vehicle must be a model eligible to compete in ST5 for an ST5 vehicle, and ST6 for an ST6 vehicle. So, engine swaps are not wide open, as some people seem to believe, but if the B18 non-vtec comes from an ST6 eligible vehicle, then it is okay. Quote Link to comment Share on other sites More sharing options...
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