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« on: January 24, 2018, 11:26:59 AM »
I am going to either rebuild my '53 Manhattan engine or do an engine swap. My question is how much can I mill the 226 head. I would like to get 8 1/2 to 9 to 1 cr. Would the power increase be noticeable? I am not trying to make it a hot rod, I just want to be able to keep up with freeway traffic. The original engine has about 80,000 miles on it and it uses oil. It has an automatic transmission. Another problem this car has is when the speedometer indicates 70 mph the GPS indicates 60 mph. The speedometer was supposedly worked on at some time and the transmission rebuilt so I don't know if the speedometer was calibrated wrong or if they put the wrong driven gear in the transmission. Any suggestions?
Bob T