CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: chilipepper13 on July 22, 2012, 02:24:59 PM

Title: Strange Block Casting Number
Post by: chilipepper13 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

Title: Re: Strange Block Casting Number
Post by: bertfam on July 22, 2012, 02:33:05 PM

3927184 isn't the block casting number. That's the intake manifold casting number.

Ed

Title: Re: Strange Block Casting Number
Post by: Boston14 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).

Title: Re: Strange Block Casting Number
Post by: Gramps69Z on July 22, 2012, 03:39:44 PM

Here it is.........http://www.camaros.org/drivetrain.shtml#BlockCast

Title: Re: Strange Block Casting Number
Post by: chilipepper13 on July 22, 2012, 03:55:35 PM

Duh... :-[

Thanks for clarification!