Thread: 305 Questions
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05-16-2005 05:42 PM #1
CHR Member
- Join Date
- Dec 2003
- Location
- Festus
- Car Year, Make, Model: 75 GMC C-15
- Posts
- 342
the 305 is already over square with its small bore, adding the 3.75 stroke crank adds cubes...but not effeciantly. Id stay with the 3.48stroke75 GMC C-15 factory 454, automatic, lowered
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And then a newer model....
Montana Mail Runner