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L98 and 350sb Same????

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Old Aug 25, 2011 | 02:45 AM
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L98 and 350sb Same????

Okay my question is I was set to buy a forged L98 because I have a setup ready for it meaning rhs heads fully done by Lloyd and I have a hsr setup as well. My question is what's the difference between a L98 shortblock and a standard 350 sb. I'm looking for something that I can use all my parts already bought. Its been so hard to find a L98 forged out by shop my question is if all shortblock 350 is same as the l98 or what same and different thanks for help ..
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Old Aug 25, 2011 | 10:06 AM
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Re: L98 and 350sb Same????

Yes they are the same. The #638, 148 etc castings are the same used in 87-95 chevy TBI Trucks.

Last edited by Notalent; Aug 25, 2011 at 10:09 AM.
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Old Aug 25, 2011 | 06:29 PM
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Re: L98 and 350sb Same????

L98 forged
Might be part of the problem right there; gonna be hard to find one, when there is no such thing. L98s came with cast cranks.

The L98 is a typical 350 short block with TPI on top. Flat-top pistons. Crappy typical stock cam. Relatively decent heads; nothing "great", but not bad (like for example 70s smoggers or TBI heads). Other than that, nothing about it is "special".
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Old Aug 25, 2011 | 08:15 PM
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Re: L98 and 350sb Same????

L98 didn't get flat-tops from GM.
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