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Old 01-11-2004, 09:51 AM   #1
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Default Ofna hyper .21 questions

I am trying to decide between a ofna hyper .21 w/pull start
and the ofna hyper.21 8port w/ pull start

any comments or opinions about these engines?

also the stock .15FE has a different shaft then these what do I do so I can make the ofna work in my .15fe??

thanks in advance.
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Old 01-28-2004, 04:00 PM   #2
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The 8-port is quite a bit stronger. I think only the piston and sleeve are different between the 4-port and 8-port. At least those are the only differences I could tell between mine.

What are you putting it in? The .15FE has a threaded crank while most big-blocks (like the Hypers) have SG cranks. The big-block engines are quite a bit larger than the .15FE as well, it's definitely not a direct bolt-in.
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