
Actually I ordered them for SBC with swivel heads and center bolt valve covers. They will work fine but may need tweaking around the PCV valve and oil filler cap. Due to my situation I cut them to length and welded them back to the stud mount to get exactly what I wanted. The overall height was perfect for my situation. I still give five stars because I expected it given my circumstances. If I were to use them with the valve covers bolted around the perimeter they would probably fit a BBC or SBC perfectly right out of the box.

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