Help identify this manifold

[grjammer]

Ordering head pipes and not sure of casting number
possibly a 286553 have a 3418623 on pass side, this is driver side.
is 2.25 flat outlet. heres a couple of pics to ponder. No casting numbers anywhere. may be a repop?

 

[4spdragtop]

Both numbers u posted are 340 manifold.

 

[grjammer]

Thanks for reply,
I'm sure its a 340 manifold, not sure of what year , but not sure if there were diff casting numbers I havent found in web lists. There is no number on mine. There is a 3614368 listed in some lists. and the 553 in others.

 

[ir3333]

'68 - '70

 

[4spdragtop]

8623 is for the later model 340

 

[grjammer]

I've found an old picture on here of a 2863533. Thats what it must be, the only other 340 app with flat flange was the 3614368, found out it has heat riser provisions in the casting that mine dont have. (flat web type upper bolt holes). Thanks for input.
I am going to order from tti and wanted to be sure. Mike at tti may have given me the wrong pn pipe at A25LE, when i think i need the TTI25LEST. The A25 is for an auto and I have a 4spd