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L92 and TBSS?

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Old Jan 23, 2012 | 11:41 PM
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Default L92 and TBSS?

I have a TBSS intake and am about to buy a set of L92 heads(823). Wanted to make sure they will mate with out any problems.

Are there differant L92 heads? If so what are they. The guy I bought the motor from had L92s on it but wasn't sure if there were more then one type of L92 head.
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Old Jan 23, 2012 | 11:59 PM
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I think I answered my own question. The TBSS intake seems to be the L92 truck intake.

If this is true someone confirming would be awesome! I was in a hurry to solidify a deal on my heads.
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Old Jan 24, 2012 | 12:11 AM
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tbss has 243 heads im pretty sure so it will NOT bolt up to L92 heads.
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Old Jan 24, 2012 | 12:21 AM
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TBSS Intake is Cathedral Port..L92 Truck is Rectangular Port.
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Old Jan 24, 2012 | 05:02 AM
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So they won't work togather.
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Old Jan 24, 2012 | 06:16 AM
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So I should go back to my original plan of port and polishing my 317s.
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Old Jan 24, 2012 | 11:20 AM
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How much you feel like spending?
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Old Jan 25, 2012 | 04:32 AM
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I called livenois and to cnc the 317s it will cost me $1099. I think I will hold off. I have one head started on for the port and polish by hand. I am going to give them a shot.

For a little bit of back story the motor was over 13:1 with the l92s. So I will still have high 12s with the 317s. Later down the road I will have a set cnced or swap to a differant head but that can wait for now.
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Old Jan 25, 2012 | 02:58 PM
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Stock or milled L92's?
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Old Jan 26, 2012 | 07:08 PM
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Stock chamber.
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Old Jan 29, 2012 | 10:08 AM
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243s are a good choice for me correct? How much smaller is the chamber then my 317s. Do they flow much better?
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Old Jan 29, 2012 | 10:12 AM
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The info I could find is they flow nearly identica but the 243 has a smaller chamber. I would be better off to have my head milled slightly. Obviously I have plenty of compression with the stock 317s but for a race/weekend motor why not have more!
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Old Jan 29, 2012 | 10:20 AM
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TBSS intake WILL NOT work with L92/LS3 heads. Totally different port configuration.

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