How do I make sure that the 429 really is a thunderjet inside my truck. Is there a way to tell by looking at a specific part or do I have to run the numbers on the block and where do I do this if so?

 

LBF, does it matter ? The thunderjet, to the best of my memory, was what ford called the 429-4V. The one I had came from a '71 LTD. As I recall, it had small chamber, small port and small valve heads. The block was a normal 2 bolt main, but they are still plenty sturdy, and the big port heads- the ones that came on some PI engines and CJs, super CJs,- are too big to be happy on a truck engine anyhow. DF, at his work

 

All the answers to this will be in the engine series forum for this engine.385 engine series

The 429 has Nothing to do with a 73-79 truck

details:

Casting Numbers are for example : C9VE-A > C9VE-B
which is either a 429 or 460 .
The difference is determined by the stroke which will need to be measured.