1BA Flathead

Hey!Can anyone help me with finding out what the differences are between a 1BA Flathead,and a 8BA Flathead?Thanks,Dave

 

7.....don't panic..i'm reading now..answer to follow.

 

8ba 3 3/4 1 ba 4 inch
1ba has more stroke.

 

IBA is the Ford prefix for parts first used in 1951. (8BA means first use was in 1948-for 1949 model). BA means it was Ford-not Mercury. Mercuries were 8CM (First used in Mercury in 1948). A 1CM would be a part first used on a '51 Merc.

 

Source I found also said '51 Ford

 

'51 239, if innards match the heads. Differences are minimal, of no interest to rodders.

 

check out vanpeltsales, all the flathead info anybody needs

 

Thanks to ALL for the V-8 info.Very useful,the Flathead V-8 site is great.Dave

 

I think the 1ba engine is where the rotating valves started.

 

Can any flathead experts confirm this? I thought that the Mercury was the only 4” stroke flathead

 

True, the Merc is a 4" stroke, all Fords are 3 3/4".