904 conrods?

[svandamme]

anybody ever seen conrods with PN 904 10 (3) 10 100 ?

top is the one i'm speaking off
bottom one is one with a 911... PN




the conrod bolts seem shorter around the big-end

don't have em , just curious, they came up on a ad-website in NL

[Grady Clay]

Stijn,

A 904 rod has the parting surface on the big end machined serrated. The (early) 911 is flat machined.

I can’t tell from the image.

Best,
Grady

[svandamme]

Grady ,machine serrated?

from dictionary.com
numismatics. (of a coin) having a grooved edge
to make serrate or serrated: He serrated the knives so they would cut meat easily.

does this mean, the surface where the 2 halves of the big-end mate, are grooved?

does that apply for both the 904-4 and 904-6 rods??

[svandamme]

couple more pics
left one is always the one with 904 number
the right one is a 2.2T