Lets see if my lame attempts at ascii graphics can help-
Option 1: weld a heat shield to the bathtub gasket:
_/^^^^^\_
\ open / <-intake, open, relies on bathtub gasket to seal vacuum.
\______/<- bathtub gasket
\--------/ <- heat sheild..
corners bent up & welded to bottom of bathtub gasket
There should be plenty of room below the bathtub gasket to fit the heat
sheild
Option 2: seal up the bottom of the intake w/ plate aluminum:
_/^^^^^\_
\______/ <- Intake w/ bottom sealed up by plate Al
\______/<- bathtub gasket
Hope this helps...
Gary Shook
Penrose, CO
>I don't quite follow. Could you explain further?
>Dr. Pat
>
>----------
>>>
>>>> I think the idea is to just weld an additional heat sheld to the
bathtub
>>>> gasket (the one that covers the lifter valley)... But I've heard of a
>> good
>>>> alternative to this is that after you've made the mods to the intake,
>> then
>>>> have the bottom of the intake sealed up with 1/4" plate Aluminum... it
>> will
>>>> act as a heat sheild, and prevent the vacuum leak problem in the
future..
>> as
>>>> well
>>>>
>>> as further reducing the plenum volume.
>>>
>>>> Gary Shook
>>>>
>>
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