No the Bristol engine didn't stay with the car. The engine number was 100 D2 525. It had the 9.5 to one Pistons and was a reasonable engine. However as a daily driver summer and winter it was a bit temperamental, and with the power band only coming in at 3000 revs not the best car to drive in heavy traffic. I initially got involved with an engineer to do the work, highly recommended turned out to be a waste of space. Never completed the work I wanted him to do. As far as I remember the engine was sold to somebody called McPherson who raced a Cooper Bristol. Originally paid £350 for 4BPG in 1968. They were just old cars then that young impecunious folk like myself could have fun with.Phil Mc