C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oversized Plenum gaskets

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Old Sep 12, 2001 | 12:44 PM
  #1  
KYVette90's Avatar
KYVette90
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Burning Brakes
 
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From: BowlingGreen KY
Default Oversized Plenum gaskets

I've just ported my plenum and I need some new gaskets. They have to be bigger than stock. I know you can get stock ones and cut them open bigger, but I was wondering if anyone knows where I can buy some oversized ones, maybe for the siamesed runners? Anybody know? :confused:
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Old Sep 12, 2001 | 01:24 PM
  #2  
65Z01's Avatar
65Z01
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From: SE NY
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Default Re: Oversized Plenum gaskets (KYVette90)

I believe TPIS has larger gaskets since they sell the LT runners. Try SLP for siamesed ones.
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Old Sep 12, 2001 | 02:39 PM
  #3  
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Dave's_88
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From: Dead center of Seoul
Default Re: Oversized Plenum gaskets (KYVette90)

Yup, TPiS part #100-011, Tuned Port Gasket Set, Large Tube, $18.00

-Dave
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Old Sep 12, 2001 | 08:51 PM
  #4  
KYVette90's Avatar
KYVette90
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Burning Brakes
 
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From: BowlingGreen KY
Default Re: Oversized Plenum gaskets (Dave's_88)

Thanks for the part number. :cheers:
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Old Sep 12, 2001 | 10:20 PM
  #5  
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JAKE
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From: Kempner Texas
Default Re: Oversized Plenum gaskets (KYVette90)

I used the stock size ones after I REALLY opened the runners, plenum and manifold.

I placed the gaskets on the runners, used bolts, washers and nuts to hold them in place. I then used my high speed Makita grinder with a very fine tooth carbide bit to remove as much gasket material as needed.

I periodically placed the gaskets on the plenum and manifold to make sure the gasket mods were matching.

Pretty simple and worked great.

Jake
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