Re: Polishing manifold head ports

Posted by Janicholson on October 16, 2006 at 13:07:45 from (199.17.6.122):

In Reply to: Re: Polishing manifold head ports posted by FarmallBob on October 16, 2006 at 11:53:58:

Good question, the answer is not a bit. The displacement of an engine is its swept volume. the area of its piston/s (A=pi times radius squared) times the stroke, times the number of pistons. The combustion cahmber volume is not involved. A 283 chevy with low compression heads has the same engine displacement as a 283 with special low CC track heads. The higher the compression ratio, and larger the displacement, the more power (untill it becomes stressed to the point that no fuel will burn in it without knocking, or the cylinder walls are so thin from boring that they break. JimN

Replies:

• Re: Polishing manifold head ports FarmallBob 13:43:39 10/16/06 (0)

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