hello...i found at ebay some tb , they are at these sizes: 68, 70 ,74mm
One of them is 74mm outside and 69 mm in the otherside...
Is this too much for a motor of the followin specs? basically i wanna know if its gonna cause any problems bein so big
b18c block , wiseco ultralight pistons , eagle rods , 13:1 cp
ported by portflow head
blox spec B cams
Blox intake manifold or victor x manifold ( i dont know what to get yet...)

 

lil big....i got a nice 70.....

 

They're all too big, imo. Unless your going for a very high powerband, then the 68mm might be acceptable.

 

https://honda-tech.com/zerothread?id=1624626]

cant go wrong