X 303 cam install??????

busterc · 11-16-2004, 03:43 PM

I have an 89 Mustang notch with a 302 H.O. in it and a friend of mine has a brand new X 303 cam for sale for a super price........Will it work with stock valve springs and will the piston/valve clearance be ok????

04SVTDRIVER · 11-22-2004, 12:37 AM

I had a 94 gt with a 5.0 and did a B303 cam install with no problem go to the ford wedsite or search google for the answer

killbee · 12-26-2004, 09:27 AM

I would go ahead and install new springs, milage on the factory springs is enough reason, but the extra lift of the X cam will more than likely cause the factory springs to bind especially in the upper RPM levels where the X cam will take the 5.0. This would cause what is called valve float which is not good for you engine.

11-16-2004, 03:43 PM	#1 (permalink)
busterc Junior Member Join Date: Nov 2004 Posts: 1	X 303 cam install?????? I have an 89 Mustang notch with a 302 H.O. in it and a friend of mine has a brand new X 303 cam for sale for a super price........Will it work with stock valve springs and will the piston/valve clearance be ok????

11-22-2004, 12:37 AM	#2 (permalink)
04SVTDRIVER The more Boost the Better Join Date: Nov 2004 Location: Stationed at Seymour Johnson NC Posts: 191	I had a 94 gt with a 5.0 and did a B303 cam install with no problem go to the ford wedsite or search google for the answer __________________ 04 Screaming Yellow Cobra Go Fast/Performance: Custom 3" Header back exhaust, Custom O/R X-Pipe, Steeda Highflow's, Steeda Triax (on the way), 95mm MAF, Cold Air Intake, Predator Programming, 2.8" Pulley (ON THE WAY) Styling: Steeda shift knob, Blackout letter kit, tinted windows, Cobra grille insert

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12-26-2004, 09:27 AM	#3 (permalink)
killbee Member Join Date: Dec 2004 Location: Western NC Posts: 31	I would go ahead and install new springs, milage on the factory springs is enough reason, but the extra lift of the X cam will more than likely cause the factory springs to bind especially in the upper RPM levels where the X cam will take the 5.0. This would cause what is called valve float which is not good for you engine.