b18b VS. b18a

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Old Sep 4, 2006 | 03:58 PM
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Default b18b VS. b18a

can someone please tell me the difference between the 2, just the block. cause i baught a b18a block for my lsvtec and i wanna know if i made a big mistake
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Old Sep 4, 2006 | 04:02 PM
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most lsvtec i have seen use a1 blocks.I do not think there is big difference if any.
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Old Sep 4, 2006 | 04:07 PM
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Default Re: (E_F_9)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by E_F_9 &raquo;</TD></TR><TR><TD CLASS="quote">most lsvtec i have seen use a1 blocks.I do not think there is big difference if any.</TD></TR></TABLE>
x2
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Old Sep 4, 2006 | 04:29 PM
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Default Re: (88sleeperx)

they are the same thing, a1 was 1993 and below and the b18b1 was 94+
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Old Sep 4, 2006 | 05:30 PM
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Default Re: (IntegraGuy16)

Same engine, slight increase in power due to better intake manifold and cams
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Old Sep 4, 2006 | 05:33 PM
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Default Re: (Deetz)

i believe one of them you have to tap a hole for the knock sensor...don't quote me on that one.
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Old Sep 4, 2006 | 06:13 PM
  #7  
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Default Re: (f-it3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by f-it3 &raquo;</TD></TR><TR><TD CLASS="quote">i believe one of them you have to tap a hole for the knock sensor...don't quote me on that one.</TD></TR></TABLE>
Both block are non vtec without a knock sensor, they are the same block and head
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Old Sep 4, 2006 | 06:16 PM
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i dont know about physical differences but a1's usually have higher milleage
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Old Sep 4, 2006 | 06:19 PM
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Default Re: (civhatch90)

very easy to get a hold of. got my b18a1 block for free, so im building a turbo ls motor.
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Old Sep 4, 2006 | 07:11 PM
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Default Re: b18b VS. b18a (latinf86)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by latinf86 &raquo;</TD></TR><TR><TD CLASS="quote">can someone please tell me the difference between the 2, just the block. cause i baught a b18a block for my lsvtec and i wanna know if i made a big mistake </TD></TR></TABLE>
Not a mistake at all, especially since you won't be using the cylinder head. The B18A1 will be fine.

- '90-91 B18A1: pre-OBD, 130hp, 121 lb-ft
- '92-93 B18A1: OBD-1, 140hp, 126 lb-ft
- '94-95 B18B1: OBD-1, 142hp, 127 lb-ft
- '96-01 B18B1: OBD-2, 140hp, 124 lb-ft
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Old Sep 4, 2006 | 08:02 PM
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Default Re: b18b VS. b18a (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by E_F_9 &raquo;</TD></TR><TR><TD CLASS="quote">most lsvtec i have seen use a1 blocks.I do not think there is big difference if any.</TD></TR></TABLE>

most use a1 cause you can get them dirt cheap and they rebuild them anyway so you dont care about the condition...with the b18b you're talking usually around $500+ for good running motor,,for a1 you're talking around $50-$100 usually..but at some pick and pulls they just charge $100 for any 4 banger,,even if you can find a b16 or gsr
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