ALAN racingstudebakers Mon Jun 11, 2007 9:11 pm EX-2143 was .040 over bore and a 224 crank with 2 13/16" stroke for 229 CI. it set the Class E Supercharged Sedan record in 1963. With a 3.07 rear for a 2 way average of 147. The record lasted until 1970 when a GMC supercharged 260 Ford powered 1934 Ford sedan ran at 151.39. Dick Bennett told me he wanted to rebuild the engine and get the record back.