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the block differences between an A-14 engine and a A-15


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I couldn't find much for these engines on that site. and the builds I can find on here are of a different engine, not the factory A series. The engine in my car is the factory A-14, so that's why I want to build it. And I don't want a radical build, I just want to bump the horse power rating to about 100. 

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Since the head is the same as an A14, peak power will be the same, but in lower RPMs there is a 7% cubic inch advantage.


To make a huge difference, bore it out. A 3mm overbored A14 will make more mid-rpm power than an A15. Of course you could likewise overbore an A15. Custom forged pistons are only $100 from Arias.

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