As for the L20b being a strong block, I don't doubt that but I don't consider the crankshaft as part of the block.
A friend of mine didn't recomend it althought he is running flat top pistons too.
James Cox
From: "maldat" <[EMAIL PROTECTED]>
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Subject: Re: L20B Mods
Date: Thu, 28 Nov 2002 10:49:26 +1300
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I ALWAYS RUN A87 SMALL PEANUT HEADS ON L20B ENGINES WITH NO PROBLEMS.(sorry
about the cap lock).
Bolt it on and go hard.
malcolm
----- Original Message -----
From: "james wade" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 28, 2002 2:38 AM
Subject: RE: L20B Mods
> Isnt a L20 Block very very strong? Like stronger than most bottom
> blocks? With that said it should take an a87 head (L18?) pretty easy?
> Any ideas?
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of James Cox
> Sent: Wednesday, 27 November 2002 11:39 PM
> To: [EMAIL PROTECTED]
> Subject: Re: L20B Mods
>
> I'm hardly the most qualified to answer this question, but considering
> no
> one else has yet, I'll help with what I can.
>
> >1. Can I put a L18 head onto a L20 bottom end, and will the standard
> bottom
> >end cope with the compression rise ok??
>
> I would say not, you need a strong bottom end to do that.
>
> >3. will fit the bluebird ignition as I hear it is much better, are
> there
> >any possible problems with this??
>
> Not that I know of...
>
> >4. the motor will be going into a 180B SSS, will it still fit without
> >modifying the bonnet as I am told the L20 block is taller??
>
> I think it would, I've seen a L20B motor in a 120Y and it didn't need
> bonnet
> mods, plus the height difference should be minimal.
> >
> >5. will the standard 3spd auto (not my choice, my gf on ly has an auto
> >license) cope with this power increase??
>
> It should handle it ok I think, a stall converter might be an idea to
> reduce
> power loss though. I wouldn't try it with serious power though.
> >
> >6. Lastly, thinking of twin dellortos or similar, just to have twins on
> it,
> >is this a bad choice??
>
> If you want twins, I recomend you get some SUs, they alone give you more
>
> tourqe and more economical than others.
> >
> >can anyone think of any probs, or things I might miss??
>
> Get a set of extractors and a sports exhaust, I recomend 2.25in, that is
> the
> cheapest hp increase you will ever get, plus it gives better fuel
> economy,
> actually there's nothing bad to be said about aftermarket extractors.
>
> I sure others will have somthing to add,
>
> Hoped that helped some,
>
> James Cox
>
>
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