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Old 02-16-2003, 09:53 PM
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What are the disadvantages of an OHC engine?

Are there any DISADVANTAGES in a OHC design engine vs. pushrod type?

I own both types--a 4.5 SOHC Mercedes, and a 455 Trans Am.

I always assumed the OHC design was a better design in every respect. So I was suprised to hear someone say the pushrod type offers the advantage of a flatter HP/tourque curve over the full RPM range. Is this true? Are there any other comparisons that favor either motor?

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