Small block open class

There is a big block open at sometracks and that is usually anything about like 301cc I think. And the small block open class is anything underneath that so yes you can run that in a small block open class.
 
Jsm1 said:
Can a hf greyhound be ran in the small block open class
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Yes. Small block open/open modified is anything that fits the standard mount and at or under 14.5 CI. Some tracks and series outlaw the billet heads or blocks. But the greyhound will be a legal base.
 
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