Today, dollar for dollar, is the 318 faster than the 340 ???

mygasser said
isn't 5.2 (litres) just the metric version of 318 (cubic inches)? both are a 318/5.2 surely? and the idea was to build the 318 to outperform a 340 for a buy and build budget, no statement of how to build it in the first post. do you mean speedmaster heads are ok but magnum heads not so much?

the poll numbers are still getting closer together the more people think objectively about the original question (without personal bias).
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No IMO a 5.2 shouldn't be called a 318 if one is going to say "a 318 can beat a 340" its misleading. There are too many differences, compression ratio heads roller cam etc. I've said it before its like calling a 5.0 Ford a 302. Once tyou tear them both down side by side you'll see the differences, a set of magnum pushrods don't just drop into an LA engine.