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Difference between B18B & B20 head?

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Old 06-07-2004, 12:03 PM
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Default Difference between B18B & B20 head?

Just wanted to know for sure if these are the same or are there differences between them.

I have a 1998 USDM B20 head and wanted to know how it would work on a regular LS engine. I know about the intake manifolds already.
Thanks.

Deetz
Old 06-14-2004, 04:21 AM
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Default Re: Difference between B18B & B20 head? (Deetz)

same ****
Old 06-16-2004, 01:03 PM
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Default Re: Difference between B18B & B20 head? (98B00STED)

i beleive it is diferent i could be wrong but thats just a hunch
Old 06-16-2004, 10:54 PM
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Default Re: Difference between B18B & B20 head? (98B00STED)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98B00STED &raquo;</TD></TR><TR><TD CLASS="quote">same ****</TD></TR></TABLE>

Yep. I believe 99+ LS's got a little bigger cams.
Old 06-17-2004, 05:11 PM
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Default Re: Difference between B18B & B20 head? (turbogixxer)

i also believe that the chambers are larger even the intake and exhaust ports are larger subject to failer in a boosted situation...
Old 06-18-2004, 11:54 AM
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So far i have ansewers going both ways yes and no. No one knows for sure? This will be used for only all motor combinations.
Old 06-18-2004, 01:31 PM
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Default Re: Difference between B18B & B20 head? (Deetz)

I vote for same.

Aren't they the same part#?
Old 06-19-2004, 10:05 AM
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Default Re: Difference between B18B & B20 head? (KRiS1)

intake ports are slightly bigger, otherwise no diff. I dont think they changed the cams for 99, either. 94+ B18 cams are the universal nonvtec b-series cam. the 92-93 cams are suspected to be slightly more aggresive than the 94+. I havent found any hard evidence on this, though.
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