Based solely on this post, I'm not exactly sure what you're trying to do, but here are a few things to consider.Originally Posted by 322special51
Dynaflows were different lengths in different years and series so that needs to be considered.
The 1956 40 series used the same 6 bolt (top plate) syncromesh transmission that the previous two years (1954-55) 50 and 60 series used. The 1956 40 series was the only series to offer syncromesh, the 1956 50,60 and 70 came only with Dynaflow. The 6 bolt trannies are a tougher unit than the smaller 5 bolt unis used in 1954-55 40 series. They are very desirable. If you can get it at a good price, grab it. Be sure also of course to get the bell housing, clutch and any clutch linkage, pedals and all if possible.
Re the engine, as in 1954 and 55, there were different compression ratios between the 40 series engines with Dynaflow and the 40 series engines with syncromesh trannies. This difference was gained by using pistons with different dome heights. The compression ratios for 1956 50,60 and 70 series (with Dynaflow, which is the only way the came remember) are also higher than those for 40 series with Dynaflow but I have never known how that was obtained as the cylinder head gaskets are the same thickness. I'd like to hear how that was done if anybody can tell me.
I personally have a 54 six bolt syncromesh that I plan to bolt behind a 322 out of a 1956 Century in a 54 Special/Century hot rod....someday.....
Shipping cross country would be a killer but I may be interested. do you have a bellhousing and flywheel.
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