4-71 hp and fuel consumtion differences

Author Message   mikey theriot Member Username: mikeytheriot Post Number: 21 Registered: 09-2007 Posted on Saturday, May 09, 2009 - 08:11 pm:    I need to know what is the difference in fuel consumption between a 4-valve head with n-60's and 2-valve with n-60's on a 4-71 and horsepower difference. 1 mech 2 another'thanks   Jimmy Graves Member Username: jimg4652 Post Number: 26 Registered: 11-2008 Posted on Monday, May 25, 2009 - 10:15 pm:    I'm not sure about the fuel consumption. 471 2-valve N60: 128HP @2100RPM 471 4-valve N60: 140HP @2100RPM   Jim Stephenson New member Username: jimstephenson Post Number: 1 Registered: 10-2009 Posted on Wednesday, October 21, 2009 - 08:32 am:    I have a 4-71 serial 4A0217879 and Model: 0435000. Jimmy, I looked on a previous info you gave and saw that it was a 4 valve but was wondering what year this engine is?   Jimmy Graves Member Username: jimg4652 Post Number: 44 Registered: 11-2008 Posted on Wednesday, October 21, 2009 - 10:24 pm:    1976   Jim Stephenson New member Username: jimstephenson Post Number: 2 Registered: 10-2009 Posted on Sunday, November 01, 2009 - 09:09 pm:    Would there be anyone who would know where I can get a fiber clutch disk for the detroit 4-71. It has a hand clutch attatchment and the fiber disk (78 teeth) needs replacing.

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