I am not an expert in metallurgy by any stretch but IMHO some issues could creep in between this application of 2 very different metals.  Aluminum will yield much more than steel when compressed and not return completely to it's original shape when cooled.  AL also has a much greater thermal expansion rate than steel. Being "worked" under the heads of the 2 bolts and many thermal cycles it may eventually "work" loose.  There also will be a lot of compression under the crankshaft bolt. I hope others will comment but these are my thoughts on this very dynamic highly stressed part. Stressed by heat, mechanical motion and harmonics.  JEFF.....................


64F100 57FAIRLANE500

I had noticed the one that sells me, yours is made of cast aluminum.

Sometimes I tend to over think the issue. I didn't realize the aftermarket add-on is aluminum.  Looks like you will be fine and again, nice machine work, I may have spent too much time in the aviation field. JEFF........


64F100 57FAIRLANE500

😀👍

My concern now is about the possible excessive weight and how far I could lighten without destroying it.

I have another question, I have seen the sale of aluminum thermostat housing that says fit in a 292, does anyone know or know any for sale apart from that of mummerte?

I have also seen in several images of "Y" engines that carry what they call oil deflector inside the distribution housing, my engine did not have it, is it important?

Capelo.  An oil deflector inside the (ignition) distributor housing? OR are you referring to an oil deflector inside the timing chain cover used for the first 3 years of y-block production that was intended to deflect oil onto the crankshaft gear?

- The rocker arm shaft on the oil pump side of the engine block, has an overflow tube that is intended to direct oil toward the ignition distributor gear that is driven by the camshaft gear.

- The rocker arm shaft on the opposite side of the engine oil pump, has an overflow tube that directs oil toward the engine's timing chain and the crankshaft and camshaft gears.

Please clarify what we're talking about. 


NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

I want to refer to the one in the crankshaft in front of the distribution chain, thanks

I think he is referring to the oil slinger