Author Topic: Strange Block Casting Number  (Read 1151 times)

chilipepper13

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Strange Block Casting Number
« on: July 22, 2012, 02:24:59 PM »
Hi there

Finally assembled all the numbers of my engine today while taking pictures of everything. Something about the engine block casting got me puzzled. My car is a very early 1969 SS/RS 350 (engine build date on the pad stamp indicates Sept 25) and it has the block casting number 3927185 GM 5 T. According to an article on CRG a 1969 350ci block should start with 393 though  ???

Any help would be greatly appreciated! Thanks,


Ed
Eddy C.

1969 SS/RS 350 Convertible

Ed B

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Re: Strange Block Casting Number
« Reply #1 on: July 22, 2012, 02:33:05 PM »
3927184 isn't the block casting number. That's the intake manifold casting number.

Ed

Boston14

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Re: Strange Block Casting Number
« Reply #2 on: July 22, 2012, 02:33:44 PM »
The picture you show is the casting number of the Tonawanda cast intake manifold, which is correct for Tonawanda built 350 4 barrel engines.  The block casting number is on the block surface between the bellhousing and intake manifold (behind your coil and distributor).
boston14

1969 SS/RS 350 Convertible
Dover White with Black Top and D90 stripe, Red Standard Interior

Gramps69Z

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Re: Strange Block Casting Number
« Reply #3 on: July 22, 2012, 03:39:44 PM »
Captain John Wykoff
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I'm sick and tired of mismanagement and disappointment. 
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chilipepper13

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Re: Strange Block Casting Number
« Reply #4 on: July 22, 2012, 03:55:35 PM »
Duh... :-[

Thanks for clarification!