MustangWorks.com : Ford Forums - View Single Post - Any piston to valve clearance prob with AFR 165's?

5ohCOUPE · 03-08-2003, 06:26 PM

I have a set of Windsor Jr's im selling which had 1.94 intake valves in them. I didnt want to go any past .510 lift in fear of a valve saying hello to a piston. Im buying a set of AFR 165's which have only 1.90 valves. Im going to put a set if 1.7 rockers on this cam I have now which will bring the lift to around .540 with .218 duration @ .050. Will there be a problem with a stock piston or will it be safe??

03-08-2003, 06:26 PM	#1
5ohCOUPE Registered Member Join Date: Sep 2001 Location: ORANGE PARK FL. USA Posts: 208	Any piston to valve clearance prob with AFR 165's? I have a set of Windsor Jr's im selling which had 1.94 intake valves in them. I didnt want to go any past .510 lift in fear of a valve saying hello to a piston. Im buying a set of AFR 165's which have only 1.90 valves. Im going to put a set if 1.7 rockers on this cam I have now which will bring the lift to around .540 with .218 duration @ .050. Will there be a problem with a stock piston or will it be safe?? __________________ 91 LX COUPE, 3.73 gears, 2 1/2 inch H-Pipe, 1 5/8 MAC long tube headers, 73 MM C&L MAF, 70 MM MAC TB, LUNATI cam,1.7 TFS Rockers, TFS Track Heat heads, TFS Track Heat intake, T5 with PRO 5.0 shifter, Griffin aluminum radiator, Fluid Damper, SSM traction bars, 190 GPH in tank fuel pump. And more to come.