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56 cad head casting numbers

Started by Dave A, March 28, 2010, 02:47:11 PM

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Dave A

Have a set of heads with big exhaust ports . They fit on the 331 but the exhaust ports are wrong. Someone told me they where for a 56 or newer. What casting numbers did the 56 start with
Dave Anderson

Otto Skorzeny

I don't know the numbers but you are correct, the 1956 was 365 CID and has larger ports.
fward

Ask not what your country can do for you, but what you can do for YOURSELF

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Pat

Dave,
I have a couple of sets of '56 heads and they all have the same casting numbers...1465406-7
HTH
Cheers,Pat

Philippe M. Ruel

331 exhaust ports are larger on 1952-55 engines, compared to 1949-51. 331 gasket sets usually include two different exhaust manifold gaskets sizes.
1952 60 Special in France.