Fly cut cost
A lot cheaper if you do it your self. LG used to rent the tools and a hogged out head to use as a guide. Not sure if they still do it or not. Otherwise its probably gonna cost your 2 or 3 bills, assuming the heads are already off.
Well, ideally youll want to measure, but even thats not an exact science cause the cutter is a larger diameter than the valve, and a .090 cut wont gain you an additional .090 clearance. I just cut mine at .090. Anywhere from .075 to .090 is typical, but I wouldnt really go past .100 deep in a stock piston. Its supposedly pretty thick in the area, but I wouldnt go too far, ya know?
ya, i get you. So basically if i cut it .090 then it'll be able to take a lift of .090 from the valve? so if i have a cam that has a valve lift of .598 then it'll be able to fit a valve lift of .649? sorry about all the questions dude, but i sure do appreciate your help!
You need to measure and cut bottom line, no exceptions...Why?
You can measure and be fine with one .649 cam.
Then put another .649 cam in with a longer duration, earlier intake valve opening, and you might have .1xx interference.
Duration will cause PTV contact before lift will.
You can measure and be fine with one .649 cam.
Then put another .649 cam in with a longer duration, earlier intake valve opening, and you might have .1xx interference.
Duration will cause PTV contact before lift will.
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Verdad Gallardo Right, at max lift the piston is usually a good way down teh cylinder. Things are closest right off the seat, where the piton is still near TDC, and teh valve is just starting to open or has not fully closed yet. To know if you really need to fly cut, you have to measure with teh top end mocked up. However knowing how much to flycut is a darker art still. Shoot for .090 and measure again, that shoudl be good for just about anything you can throw at it.
My $210 quote was performing the job on a shortblock. If we had to remove the heads from the shortblock first or even pull them out of the car, the price would of course increase.
Obviously this is done on engines with full floating piston pins, you can't press pistons off and put them back on an sleep well at night.
$1200-$1400 might be a do it by the book price.
It's cheaper to get some in the head flycutting tools and do it sometimes even with the engine still in the car.
I'd check PTV first and see if you need both cutters, sometimes you only need one.
It's pretty easy for an advanced DIY'er to do with it on an engine stand, using the right procedures and tools.
