81A Big A Heads

[Tim Ayers]

Originally Posted by Bored&Stroked

There is also a very rare 81AS head - which a friend of mine from Finland has a set of. They are a special high-compression design - and look just about the same as most of our aftermarket chambers (like Edelbrock, Navarro, etc).

I'd love to find a set of these . . . well, just because . . .

Attachment 470705

Me too!

[Step-down]

B&S
Keep reading your last post , find it very interesting and open up interesting history of out Flatmotors

[Bored&Stroked]

Originally Posted by Step-down

B&S
Keep reading your last post , find it very interesting and open up interesting history of out Flatmotors

One thing us 'Flathead Guys' have learned over the years is that having a consistent .040 or so squish over the piston is key for turbulence and overall performance. It doesn't matter if it is a Harley KR, a Cadillac or a Ford flathead . . . same deal with all of them.

[Kube]

[QUOTE=Bored&Stroked;2046702]There is also a very rare 81AS head - which a friend of mine from Finland has a set of. They are a special high-compression design - and look just about the same as most of our aftermarket chambers (like Edelbrock, Navarro, etc).

I'd love to find a set of these . . . well, just because . . .

Yeah, good luck in your search!
I had found a pair at Hershey many years ago. NOS and aluminum to top it off. That (aluminum) made them even more rare. Paid an insane price for them but needed them for a at that time future restoration of a very rare '40 Ford Convertible Coupe.

[Phil Gillespie]

[QUOTE=Kube;2047163]

Originally Posted by Bored&Stroked

There is also a very rare 81AS head - which a friend of mine from Finland has a set of. They are a special high-compression design - and look just about the same as most of our aftermarket chambers (like Edelbrock, Navarro, etc).

I'd love to find a set of these . . . well, just because . . .

Yeah, good luck in your search!
I had found a pair at Hershey many years ago. NOS and aluminum to top it off. That (aluminum) made them even more rare. Paid an insane price for them but needed them for a at that time future restoration of a very rare '40 Ford Convertible Coupe.

On that picture of the engine where is the radiator cooling fan located?
Thanks,
Phil NZ

[cadillac512]

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Hi Phil


On that '40 the fan with short extension will be mounted directly to the end of the crankshaft. If you look very closely I believe the tip of a blade can be seen near the distributor.


Terry

[Bored&Stroked]

Originally Posted by Kube

Yeah, good luck in your search!
I had found a pair at Hershey many years ago. NOS and aluminum to top it off. That (aluminum) made them even more rare. Paid an insane price for them but needed them for a at that time future restoration of a very rare '40 Ford Convertible Coupe.

Thanks Kube: I must ask, why those particular heads for that car - was it because they were aluminum? There were quite a few other 81A heads that would have been correct on that engine. Just wondering - given that you had to pay a lot for them???

Did you notice the deeper domes as well?

[Phil Gillespie]

Originally Posted by cadillac512

Hi Phil


On that '40 the fan with short extension will be mounted directly to the end of the crankshaft. If you look very closely I believe the tip of a blade can be seen near the distributor.


Terry

Terry thanks for that info much appreciated
Phil NZ