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Old 09-06-2011, 07:03 PM
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Icon2 b18a1-b18b1 head swap question

sup H-T I have 90 crx si with a 90 b18a1 obd-0 swap. Here my problem I noticed i was leaking oil from between my head and block. I decided to replace the head gasket went to take off the bolts that hold down the camshafts and most of them broke. I have a spare 96 b18b1 head I wanna use since my friends say its better then the 90 b18a1. i have a head gasket kit from my old 92 Integra. Would the headgasket,and vavle stem seals from my 92 fit the 96 b18b1 head???? any help appreciated
Old 09-06-2011, 08:03 PM
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Default Re: b18a1-b18b1 head swap question

internal wise, they are the same.
the headgasket i believe is also the same.
if you wanna use the 96 head, change over all the obd0 parts.
dizzy, manifold, etc.
Old 09-07-2011, 06:43 PM
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Default Re: b18a1-b18b1 head swap question

I just got done with swapping heads used the old obd-0 dizzy, IM ,etc on the 96 b18b1 head started right up but sound like sh*t. The rpm are staying at about 2k rpm at idle. I moved the dizzy back and fourth, I also messed with the idel screw on the TB. which got the idle down to 1100rpm but ran really bad and it also back fires. my girlfriend says it sound like a slug bug now . If my timing was off by a little could that be the cause of my problem??
Old 09-07-2011, 06:47 PM
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Default Re: b18a1-b18b1 head swap question

did you adjust the valve lash?
Old 09-07-2011, 07:21 PM
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Default Re: b18a1-b18b1 head swap question

No I didn’t, I just swapped the whole head over going to check my timing again tomorrow. Ecu is not throwing any codes.
Old 06-23-2012, 11:16 AM
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Default Re: b18a1-b18b1 head swap question

DIDF U PUT a obd1 dizzy on it since the b18b1 is obd 2a u can run it on obd1
Old 06-23-2012, 11:40 AM
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Default Re: b18a1-b18b1 head swap question

I agree with turbohatchbnuts valve lash should take care of your problem, also spray some carb cleaner around IM gasket area along with injector area, and check for any vacuum leaks.
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