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#5
07-21-2019, 03:54 PM
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GM rockers that were not long slot had no markings only rhe long slot rockers were marked. Solid lifter big blocks up to 69 had L and after 69 they had a H. I do not believe there was any difference in the 2
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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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