What engine is this?

[Goddess_Randi]

Need help identifying the HPI engine on this Savage X truck. The truck came to me labeled as a savage x 4.6 bigblock, however the engine doesn't seem to be a 4.6 from what I can find.

From pictures I found on the internet it looks like it's a Nitro Star F4.1 not a 4.6, but I'm not familiar enough with these engines to confirm.

Any help would be appreciated.

 

[hwrd442]

F4.6. It has 12 cooling fins.

 

[Goddess_Randi]

F4.6. It has 12 cooling fins.

This one? https://www.hpiracing.com/en/part/1495

 

[hwrd442]

This one? https://www.hpiracing.com/en/part/1495

Yes

 

[Goose1072]

It also looks like the S25 but it was marked on one of the sides S25
They probably changed the head.

 

[Goddess_Randi]

It also looks like the S25 but it was marked on one of the sides S25
They probably changed the head.

If this is the one you mean: https://www.hpiracing.com/en/part/1406

Mine doesn't have the .25 on either side like that one.

 

[Goose1072]

Could be a 4.1 then: Savage 4.1 but I don't think so since the head only has 11 fins.

Has to be this one: Savage X 4.6 or Savage X 4.6 with 2.4Ghz