95head on 90 - which valve clearances to use?

ASSISTANCE Hybrids & Advanced Aftermarket Engine Performance
1

which valve clearances should i use? b18a is .006-.007/.007-.008. heres some specs.

Factory spec for the B18C1/5 and B16A is:

Intake: 0.006"-0.007"
Exhaust: 0.007"-0.008"

Factory spec for the B18B and B20B/Z is:

Intake: 0.003"-0.005"
Exhaust: 0.006"-0.008"

as you can see the b18b requires a tighter intake and even exhaust

2

use the valve clearances for the head you’re using. They are specific to the cams and valves you’re using more than they are to the actual block. So, if you’re putting a b18b head on, use b18b valve clearances. If you’re using a b18c head, use the b18c valve clearances…etc…etc