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04-05-2013, 07:12 PM
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Registered User
Join Date: Apr 2012
Location: Loretto Ky
Posts: 318
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Roller block question
I have a 86 c10 with a tbi 305 with the center bolt valve covers. I know 87 up tbi's had the center bolt heads and roller block. My question is since I have a late 86 with the center bolt heads, would the block be a roller block or did gm mix those heads with the non roller blocks?
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