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#1
05-29-2023, 03:48 PM
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ID of rocker arms on L78
Was adjusting lash and was curious to see if anyone can ID the manufacture of these rockers. On a 69 L78 Camaro motor. I did google search and found some with same "C" made by Elgin but the C was facing away from the rocker stud.
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06A X66 711 57 57 L78 M22 BU 
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#2
06-03-2023, 05:57 PM
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All the original L78 motors I have seen are stamped with a L for long slot. There may have been other manufacturers
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69 RS SS L78 conv 69 RS SS ZL1 69 L78 Chevelle conv 69 L78 Nova 69 L34 Nova 67 SS Chevelle 73 Trans Am
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#3
06-03-2023, 09:34 PM
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Like this.
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Steve Shauger The Supercar Registry www.yenko.net Vintage Certification™ , Providing Recognition to Unrestored Muscle Cars. Website: www.vintagecertification.com
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#4
06-04-2023, 12:02 AM
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These have the same markings as yours. I have the same set on my L78.
CRANE CAMS 13800-16 ROCKER ARMS - CH. 396-454 V8 STAMPED 1.7 LONG SET/16 CRANE BBC Steel Rocker Arms1.70 Ratio- 7/16 Stud.
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1970 Chevelle SS396 L78 4spd 410 posi astro blue
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| The Following 2 Users Say Thank You to Daves70SS For This Useful Post: | ||
boomer632 (06-28-2023), Steve Shauger (06-28-2023) | ||
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#6
06-28-2023, 07:48 PM
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Good info. Will check my 69 Chevelle for curiosity sake.
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65 Corvette Coupe L78 67 427/390 Vette Coupe unrestored 67 L-79 Vette roadster (Top Flight) 69 L71 Roadster Survivor 69 L46 Roadster Survivor (Sold) 69 Z/28 RS 69 Dodge Charger R/T 70 W30 442 Auto Air Survivor 2016 Z06 Coupe M7 70 AAR Cuda (Sold) 69 L78 Chevelle
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#7
06-28-2023, 07:54 PM
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I wonder if my motor has a Crane cam too? Do or did they make a solid L78 spec cam? I definitely have a solid cam as I can see the C clips in the lifter tops when I look down through the heads where casting voids are.
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06A X66 711 57 57 L78 M22 BU
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#8
06-29-2023, 03:26 AM
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Why do the C-clips show they are solid lifters?
Jason
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#10
06-29-2023, 03:19 PM
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No. If there was no clip at all it would be solid. With any kind of clip it could be either solid or hydraulic.
Jason
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