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#1
09-28-2010, 06:13 PM
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spark plug heat shields
On small blocks,Z-28/LT-1, the heat shields always seem to be turning white after running for awhile. Anyone else have this problem and maybe a solution??..I'm sure it has something to do with them being repro parts and cheap galvanizing (I think) Putting a 67Z together and want to address this before its all together. Thanks
Albert
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1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1 
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#2
09-28-2010, 11:27 PM
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Re: spark plug heat shields
No problems on my 69Z with heat shields Albert.Never seen that before.
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#3
09-29-2010, 12:01 AM
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Re: spark plug heat shields
I don't think the originals were galvanized. When I did my 67Z, I found some decent originals and had them silver cad plated. If I remember correctly, one side had two-piece heat shields, the other had one-piece.
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#4
10-01-2010, 05:17 AM
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Re: spark plug heat shields
Here are photos of originals that were removed very early in the car's life, as in on the first day to install the factory headers. These are off Jon Mello's (1967z28) unbelievable survivor that he sold some time ago:
 Note how the lower bracket of the 2-piece shields have engine paint on them.
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#5
10-01-2010, 01:43 PM
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Re: spark plug heat shields
Denis, thanks just what we needed
Albert
__________________
1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1
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