Pontiac - Race The next Level

          
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  #21  
Old 12-09-2009, 05:26 PM
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Probird Probird is offline
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My 428 block has that hole. I guess it was added at one time. That hole is the one I that I had trouble with water filling my oil pan from a bad gasket seal. Is it needed in a race application or should it be plugged?

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  #22  
Old 12-11-2009, 04:32 PM
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herdsman herdsman is offline
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Probird, I feel that anything you can do to help cool the center of # 4/6 and # 3/5 cylinders in any use of the engine is good. That being said, I am going to drill the block for the hole in the 463 with the E-heads that has the hole in them and see what happens. We have raced this engine for 3 years so I will have a "before and after" comparision.

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