So theses heads could be either 1964 or 1965 because the year is not noted
the block also is puzzling could that be 5th day of the year being 1965 since the 656 block was only 65 and the build date 0122 ?
Looking for info on the date codes on a 348/409 specifically 65 409 with 2 digit date code on the heads and a single date code on the block
Heads 8 4 and 8 7 --These are 817 Heads
Block 5 -- cast part # 656 build date 0122 (stamped on front right side block)
When I look up this info...
If Anybody else happens to be looking for fenderwell headers for 58-64 348/409 contact Greg at ACP headers (Formerly Stahl)
I was hoping to locate an older set but was put on to Greg (closest thing to old school that one could hope for)
Greg Did a great job willing to help in anyway with my...
Does anyone know who may supply these two fittings?
I believe that the fitting for the heater hose may be a standard threaded hose fitting but the bypass appears to be a press fit
The 2x4 Aluminum intake I have is not threaded for the bypass hose fitting.
I also have an early 348...