Re: Milling heads for compression - 07/04/2011:45 AM
Originally Posted by HotRodDave
How much does every .010 decrease chamber size on the closed chamber heads? Trying to get BGE head to eagle chamber size.
.0065" off for a 1cc chamber reduction was the figure i found for closed chambers . In reality my Apaches required .020 off for a 2.1 cc reduction , But ! that was after some chamber work and a valve job.
Re: Milling heads for compression - 07/10/2009:48 PM
Assuming your basing it on .0065 for 1cc , then my math says .030" of would be a 4.615cc reduction . i think an experienced machinist will get what you want . Remember to deepen the rocker shaft oil feed slot by the same amount removed from head.