Thread: Engine block/Trans bolts
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08-19-2007 11:24 AM #5
CHR Member
- Join Date
- Jul 2007
- Location
- Phila.
- Car Year, Make, Model: '79 Firebird, GMC 350ci/ Th-350
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- 67
Just curious, what are the bolts I see w/ three lines on the head, what grade are they?
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I believe this was somewhere around 2015, Rick, Rosie and Johnboy
John Norton aka johnboy