Re: Questions on the 327

Posted by Ross On 2022/12/8 8:20:21

The -5 indicates it is a 1950.

I find the 2bbl carb has a bitter tip-in than the 4 bbl and feels more lively in day to day driving. I am running the same powertrain in my '53 and it is very peppy and flexible. I seldom take it over 80 but it doesn't mind it a bit. Consumer Reports referred to that powertrain as "excessively powered" Yes please. Your compression ratio would have been 8:1 with the original '54 head. Your compression ratio would roughly be 327/288 x CR of the 288 head. Those came in various flavors over the years--look for a cast date near the thermostat housing. Generally speaking flatheads with a lot of compression become fussy, harsh, and don't add as much fun as one hopes. Your car will have the same size exhaust the '54 did. Check the front runner of the intake manifold, it should have 327 cast into it as the runners were a small shade larger than the intakes used on the 288s.

In any event, running 65 in an overdrive car is not remotely a problem.