The Ford Barn - View Single Post - High compression heads

TerryH · 10-01-2017, 11:40 AM

I added the 5.5 head after I bought my car, and can honestly say it sounds the same to me. To me, the HC head works very well with an overdrive or a higher geared rear axle, allowing you to "pull" those higher gears and easier. If you are just driving around town, you won't notice much. For hilly country, second OD is wonderful and works very well.

10-01-2017, 11:40 AM	#16
TerryH Senior Member Join Date: May 2010 Location: Fountain Valley, Calif. Posts: 937	Re: High compression heads - Worth it? I added the 5.5 head after I bought my car, and can honestly say it sounds the same to me. To me, the HC head works very well with an overdrive or a higher geared rear axle, allowing you to "pull" those higher gears and easier. If you are just driving around town, you won't notice much. For hilly country, second OD is wonderful and works very well.