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Old 06-01-2013, 02:03 AM   #1
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Port and polish?

Im have a 68 with a l6 and wanting more power and im thinking about polishing the head anyone done this before? Is it hard?
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Old 06-01-2013, 02:18 PM   #2
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Time consuming if you do it yourself. Setting aside a full day with a friend and beers is not a bad deal
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Old 06-02-2013, 10:34 PM   #3
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Well if you don't know what your doing don't do it but here's some pointers but don't always think bigger is better bc its not when your porting just clean up the the factory casting and polish it
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Old 06-03-2013, 01:22 AM   #4
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Thats basicly all i was going o do is sand down all the ruff spots is it really worth it?
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Old 06-03-2013, 08:30 AM   #5
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Well it depends on how good the casting is but yes it's worth it
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Old 06-03-2013, 09:07 AM   #6
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Thats basicly all i was going o do is sand down all the ruff spots is it really worth it?
It will make a BIG difference when done correctly. A good rule of thumb, don't touch the floor. That is the bottom side when head is installed. Rough up the intake side, once you've removed the excess from casting, and polish the exhaust side. Roughing up the intake helps to atomize the fuel & air.
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Old 06-03-2013, 10:26 AM   #7
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Im have a 68 with a l6 and wanting more power and im thinking about polishing the head anyone done this before? Is it hard?
Back when I had my old fox I stumbled upon a company that port and polished the old 200ci motor heads, I can try and find it again if you want me to.
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Old 06-03-2013, 03:41 PM   #8
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I saw a website that does it too but i cam do it my self

---------- Post added at 01:41 PM ---------- Previous post was at 01:40 PM ----------

Do i need to replace the headgasket? It only has like 700 miles on it
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Old 06-03-2013, 06:30 PM   #9
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Yep I would get a new one bc there only supposedly be compressed once
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Old 06-03-2013, 06:51 PM   #10
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Have you thought about a new 390 or 427 crate motor?
Or a used 289/302?
Those options should be fairly cheap these days, might be worth looking into
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Old 06-03-2013, 10:21 PM   #11
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Yeah im going to get a 302 and rebuild it in looking for a foxbody fir cheap with a 302/t5 so i can swap both over
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Old 06-03-2013, 10:52 PM   #12
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Yeah im going to get a 302 and rebuild it in looking for a foxbody fir cheap with a 302/t5 so i can swap both over
That case, have at it, only one way to learn. It's really easy if you have an idea what your doing. I've seen videos on u tube that aren't to bad.
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Old 06-04-2013, 12:32 AM   #13
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I know how much power will this free up? Because my l6 just isnt cutting it haha
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Old 06-04-2013, 12:52 AM   #14
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It's enough the butt dyno will feel it. No idea on the #s, I've never done an I6. You can actually get some good #s outta that motor by changing the cam.
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Old 06-04-2013, 12:54 AM   #15
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Iv thought about it but i dont no *** from hand on cams i mean i now about the shapes of lobs change the amount the valve is open but thats about it
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Old 06-04-2013, 01:02 AM   #16
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Know*
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