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Old 05-05-2006, 06:18 AM
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Default B-series combos... already searched

This weekend, I will be purchasing a '91 prelude Si with a B21A engine. The engine is out and apart, and in need of a gasket set a piston, and rings to put it back together. My question is; What B-series Vtec head(s) (if any) will bolt on to the B21 block? Any additional info about ECU mods and headgaskets required would also be appreciated.
Old 05-05-2006, 06:20 AM
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Default Re: B-series combos... already searched (voiceinurhead05)

I'm pretty sure that none will "bolt on." you would need to heavily modify your block to accept a Vtec head. You would be better off just doing a motor swap. It would cost less money and take less time.

If I'm wrong, somebody please correct me. But I'm 99.9% sure of this.
Old 05-05-2006, 10:07 AM
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Default Re: B-series combos... already searched (The_Sober)

The_Sober is right, no VTEC head will bolt onto the b21 engine
Old 05-05-2006, 02:38 PM
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Default Re: B-series combos... already searched (danny_d19)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by danny_d19 &raquo;</TD></TR><TR><TD CLASS="quote">The_Sober is right, no VTEC head will bolt onto the b21 engine</TD></TR></TABLE>

yup, the prelude b series is nothing like the civic/teg b series
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