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Model51 · 03-13-2023, 04:37 PM

Ford Canada claimed the 1935-1936 V-8 engines with aluminum heads had higher compression resulting in 10% power increase over the cast iron heads. They claimed the aluminum head version was 90 HP and the cast iron version was 80 HP (actually 82 HP if you read the Ford literature details). I have no way to verify these claims by Ford of Canada but that's what they told the customers.
I think that improving the horsepower of your engine will take some study and measurements especially if you are only using "bolt-on" replacement parts. Heads get milled down or ported, bores increase, etc. Also, without pulling the motor and testing on a dyno, is there a way to measure any improvement? Just wondering.

03-13-2023, 04:37 PM	#4
Model51 Senior Member Join Date: May 2010 Location: Fairfax Station, VA Posts: 934	Re: Iron vs. aluminum head compression Ford Canada claimed the 1935-1936 V-8 engines with aluminum heads had higher compression resulting in 10% power increase over the cast iron heads. They claimed the aluminum head version was 90 HP and the cast iron version was 80 HP (actually 82 HP if you read the Ford literature details). I have no way to verify these claims by Ford of Canada but that's what they told the customers. I think that improving the horsepower of your engine will take some study and measurements especially if you are only using "bolt-on" replacement parts. Heads get milled down or ported, bores increase, etc. Also, without pulling the motor and testing on a dyno, is there a way to measure any improvement? Just wondering.