Early tvis red top from e9 gti small or bigport?

[Ryo]

Hello,
Its been a while i was here i have a question as says subject i have from my dismantled e9 gti red top 4age engine i have trouble to understand if it is bigport or smallport if it got tvis the block is 7rib. Some local guy want head and intake if it is small port. Another option i have to use it for my spare engine which is 7rib block with blue top head but i am not sure if it can be fitted. The block on the e9 was having damaged piston bearings i am not sure if it is worth rebuilding it i will be as well not able to use the intake as it is reversed i think. In future i plan to swap the spare engine to my coupe as the old engine is getting tired as i feel it. The spare was running really strong as i remember in my first coupe but was taken out as the chassis was over rusted and not worth saving. Any ideas what will be the best for me? Thank you.