1985 f250 6.9 rocker arms
#4
83 thru 86 6.9 rockers
Picture from DPS Performance.
Pivot point after 300 miles, notice the wear.
From the bottom, round means the rockers can shift around in a circle.
87 6.9 and 88 thru 94 7.3 style rockers
Square means no circles.
Rockers that go in circles make push rods that look like this, pictures from my collection now.
And that makes pistons sit like this.
With the block being destroyed in the process since it cracked when the valve made contact with the piston and broke the piston.
Picture from DPS Performance.
Pivot point after 300 miles, notice the wear.
From the bottom, round means the rockers can shift around in a circle.
87 6.9 and 88 thru 94 7.3 style rockers
Square means no circles.
Rockers that go in circles make push rods that look like this, pictures from my collection now.
And that makes pistons sit like this.
With the block being destroyed in the process since it cracked when the valve made contact with the piston and broke the piston.
#5
O.K. I see now. I am still looking for a set of 7.3 rockers myself. I have a buddy in Petersburg ky with a 93 F250 4x4 that runs it real hard and does little to no maintance on it. It also has the zf5 in it. I told him that when he blows it up i want first dibs on the truck lol. It also has a chuffing valve in it for the last 3 years and is still chugging along. i wonder if I will ever get a chance at that thing lol.
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