1964 429

[Logan Robb]

One of my goals is to get another 1964 429 and rebuild it my self for fun. My Fleetwood, to my knowledge, is just fine. No engine issues. But now that I have a spare transmission, might as well have a spare motor too! 

I don’t need a spare, but would be a fun project to work on and then eventually when the Fleetwood does need a rebuild, I’ve got one already build and ready to go! Seem logical if you ask me HA! 

I know 64 blocks are hard to find, but I wanted to confirm a few things:

1) Will a 429 out of a 1964 Series 75 Limo work? I know they carried over for 1965 so curious if they had adapted the block and trans at that time as well. 

2) 64 is a one year only block and transmission, correct? What are the differences in the block and what should I look for to confirm I have the correct block? Are there engine number stamping that I could reference as a sure fire way to know it’s a 64 429 block?

Thanks! 

[Matti Roth]

Hi

there are stamping in the bottom of the block on driver side, and on top in rear. All is clearly presented in Shop manual which you should have if doing rebuild.

[Russ Austin]

The 64 series 75 block is the same as all 1964 Cadillac blocks. However, the crank is different, it has the Hydra matic crank in it. 

In 65 the block changed, so look for the VIN on the LH side of the block. It will read 64*

[Jason Edge]

Check out this Help Paqe Engine and Transmission Facts - differences from 62 to 63 to 64 to 65

Also:
VIN #'s and Body Styles 
& Engine Unit Number - Decoded and Defined