The Ford Barn

scooder · 03-20-2016, 05:24 AM

Interesting,
Those rods are NOT 91A rods, the caps are but the rods ain't ! The rods are 48's!!
When you've had a bunch of these flathead parts in your hands, you can tell at a glance the rods ain't 91 or 21A which are much beefier where the beam meets the journal area. The earlier rods (like yours) are petty slender down there.
All the rods in your earlier pic are 48's, they all got 91A caps on them?
I've seen mixtures of 21A and 91A rods in a war time flat motor, but not swapped caps.
Martin.

03-20-2016, 05:24 AM	#19
scooder Senior Member Join Date: Jul 2010 Posts: 2,597	Re: British Built Flathead ID Interesting, Those rods are NOT 91A rods, the caps are but the rods ain't ! The rods are 48's!! When you've had a bunch of these flathead parts in your hands, you can tell at a glance the rods ain't 91 or 21A which are much beefier where the beam meets the journal area. The earlier rods (like yours) are petty slender down there. All the rods in your earlier pic are 48's, they all got 91A caps on them? I've seen mixtures of 21A and 91A rods in a war time flat motor, but not swapped caps. Martin.