Identify straight eight

Molin

Hello

Can someone help me to identify the straight eight i bought for my racecarbuild so i can order right parts for it. I cant find any number in top of it between 7 and 8 exhaust valves. The only number I can see is the castingnumber and a number front left, see picture. The frame is a Essex 1930.

Geoff

That number would indicate a 1930 engine, but a pic of the complete block would help to identify it.

Ric West IN

150001 is a 1936  Hudson 8.  The casting date translates to Nov. 13, 1935 which is logical for a 1936 model year installation.

Hope this helps,

"Ric"

Molin

In Dale Coopers list its difference between the earley models, I know that its thinner valvsteams and some diffrence in fuelpumps and some gaskets. Are some parts interchangeable between the models?

Spencer Yarrow

Big difference in bore size the early 8s have a 2 3/4 in bore the later are 3 in bore hope this helps.

Park_W

36-37 have the larger valve stems and guides, '38s and on have the smaller ones.  Later guides and valves will fit the 36-37 blocks if a changeover is desired.