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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I see you have a 1960 engine.
I'm wondering if you have 1958 or earlier rockers, or at least the one that squirts.
Starting in 1959 Chev moved the groove inside each rocker 1/4" off center so it did not line up with the supply hole.
If 1950-58 rockers are used on a 1959-62 engine they can squirt, that is where the drilled head bolt comes in to stop this.
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