Recently did a valve lash on a 93 acura integra *ls model* & although it is quieter I'm still not quite happy with it. Anyone know why the differences between the b18a1 & b18b1 valve lashes are different?

B18A
INTAKE: 0.006" - 0.007" (0.15mm - 0.19mm)
EXHAUST: 0.007" - 0.008" (0.17mm - 0.21mm)


B18B
INTAKE: 0.003" - 0.005" (0.08mm - 0.12mm)
EXHAUST: 0.006" - 0.008" (0.16mm - 0.20mm)

 

I dont know why they are different,but im assuming it has to be something with how the b18b intake mani has better flow,etc..

I have b18b oversized valves in my b18a head and it wouldnt stay running adjusted to b18a specs.i had to adjust them to b18b specs..