Will a s15 silvia motor fit in s110 silvia?

No, an S15 Silvia motor will not fit in an S110 Silvia. The S15 Silvia is a sixth-generation Silvia, while the S110 Silvia is a first-generation Silvia. There are significant differences between the two generations, including the engine bay size and layout. The S15 Silvia's engine bay is larger and can accommodate a larger engine, while the S110 Silvia's engine bay is smaller and can only accommodate a smaller engine. Additionally, the S15 Silvia uses a different engine mounting system than the S110 Silvia, so the S15 Silvia motor cannot be bolted directly into the S110 Silvia.