What's on the inside?

[GreasyChris]

This may have been answered somewhere already but has anyone cracked one of these red engines open? What cranks are inside? It looks like 6mm mounting studs 32mm intake. I asked the seller for specs but got nothing in reply. I'm guessing 38 mm crank zae50 rod.

 

[Lukesky36]

the most recent engines i got is a zae50 rod in them

 

[FNTPuck]

Based on the 6mm studs and 32mm intake it is old and 99% chance of being a 38mm zae50.

 

[Lukesky36]

i like my zae50 its nice pretty peppy motor geometry