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65 fastback pump gas .060 289 (297) solid roller, T5 all motor. 11.12 122 mph
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Discussion Starter · #2 ·
289 rods out of my engine. Beams ground down flat, balancing pad completely ground off the small end, shot peened for a nice uniform finish and better rod bolts. For the people who wonder why those old 289‘s could hold together at higher RPM. Here is your visual.
 

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289 rods out of my engine. Beams ground down flat, balancing pad completely ground off the small end, shot peened for a nice uniform finish and better rod bolts. For the people who wonder why those old 289‘s could hold together at higher RPM. Here is your visual.
I'd ground down that seam on several junkers I put together, wondered if it was worthwhile to make the sides flat, or just smooth it out so parting seam was gone.
 

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USAF retired
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65 fastback pump gas .060 289 (297) solid roller, T5 all motor. 11.12 122 mph
Joined
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1,220 Posts
Discussion Starter · #14 ·
A more accurate description of these rods may be that the beams were ground down smooth. The beams are not perfectly flat. They were then shot peened. Left a very nice uniform finish.
 
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