
09-18-2008, 01:47 PM
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Club Cobra Member
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Join Date: Nov 1999
Location: Salem,,
NJ
Cobra Make, Engine: ERA 289 FIA #2100 Rio Red Wimbledon White Stripes 302 stroked to 331 Webers Richmond Road Race 5 speed
Posts: 782
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Not Ranked
I thought the pre 74 blocks had the higher nickle content, and the later blocks used the thin wall casting technology. That's why the newer blocks split in half.
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 Snakebit
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