what advantage does cnc'ed 243 vs 241 have?
01-13-2007, 05:28 PM
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what advantage does cnc'ed 243 vs 241 have? just curious how much more hp will a 243 head make over the 241 make if they were cnc'ed the same? i just switched to the 243's and was just wondering
01-13-2007, 08:24 PM
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Depends on the CNC design. A CNC is not a CNC is not a CNC. The 241 heads have smaller port volumes than the 243 heads, and the 243's have a different chamber size, so the CNC will not be the same.
The 243's are inherently a better head design-wise, and just a 241 to 243 heads swap (stock heads) is usually a 10-20 hp gain (bigger ports and higher Cr from the smaller chambers) depending on the cam, exhaust, etc. of the cuurent setup.
The 243's are inherently a better head design-wise, and just a 241 to 243 heads swap (stock heads) is usually a 10-20 hp gain (bigger ports and higher Cr from the smaller chambers) depending on the cam, exhaust, etc. of the cuurent setup.
Last edited by Proud2bSS; 01-13-2007 at 08:30 PM.
