What year is my 360?

[AdaBada]

how can you determine the exact year on a 360 engine? the casting # 3418496 is for 71 thru 74 360. but each year is a different compression, hp etc. 71 is 8.7/1 72 is 8.8/1 73 and 74 are 8.4/1 is there any way to determine which year it is?

 

[Oldmanmopar]

casted into the right side here is one 5-14-73 This would normally have been in a 74 car because most engines blocks were casted in the prior year of the car build. But not always.

 

[pishta]

That's a 3? Looks like a 9...

 

[pishta]

how can you determine the exact year on a 360 engine? the casting # 3418496 is for 71 thru 74 360. but each year is a different compression, hp etc. 71 is 8.7/1 72 is 8.8/1 73 and 74 are 8.4/1 is there any way to determine which year it is?

check the compression......

as stated, there is a date cast on block.

 

[Oldmanmopar]

That's a 3? Looks like a 9...

Could be a 9 my eyes are not what they use to be. But He should get the point. It was a picture I had loaded. Probably is a 9 its a 4 bolt X block

 

[krazykuda]

how can you determine the exact year on a 360 engine? the casting # 3418496 is for 71 thru 74 360. but each year is a different compression, hp etc. 71 is 8.7/1 72 is 8.8/1 73 and 74 are 8.4/1 is there any way to determine which year it is?

Read this thread to find out how...

How to ID a Small Block Engine Block:

 

[GTX JOHN]

34xxxxx IS an early block and I prefer them.
That X block looks to be a nice piece.

 

[Oldmanmopar]

34xxxxx IS an early block and I prefer them.
That X block looks to be a nice piece.

I like the resto block and the R block due to the lifter bores beefier . But what was nice on the X block is they are casted as 318's You would never know they are 340's that some could be bored to 4.250. I had one 4.125 with a 4" stroke 421

Resto block or R3

X-block