Sitting on top of my factory thermostat housing is a fitting with 2 small "pipes coming off of it. When searching through the AIM, they appear to have gone to some heat riser/ emmisions devices( I think) which are no longer on this new motor.Do I simply change out the housing because I haven't any need for this device? I din't see many of these being used on our Corvettes,with the exception of NCRS types.

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vacuum again?

Posted: 2/26/09 6:09amMessage 2 of 3

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Adams' Apple

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Duncanville, TX - USA

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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

You can replace the housing, or simply remove the thermal/vacuum device, and plug the hole with a pipe plug. Your choice.

Joel Adams
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