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Can I get my heads Port and Polished and still use my stock intake? If so much would that cost and does anyone know a good place to get it done, pref in NC?
 

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Talk to Ron, at:

BlackBandit said:
Can I get my heads Port and Polished and still use my stock intake? If so much would that cost and does anyone know a good place to get it done, pref in NC?

Fox Lake Power Products
6512 Dalton Fox Lake Rd. N.
Lawrence, OH 44666
330 - 682 - 8800
Fax 330 - 682 - 8113

A Stage I job is $599 - labor only. The "Man" has mentioned
them in the past and Seabass has posted that he seems to
feel Ron is very capable.

Hope this helps,
 

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its not worth it to get stock heads ported and polished. the labor and work involved would fall maybe a few hundred short of newer and better PI heads and intake.
 

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You might want to read...

silvershot said:
its not worth it to get stock heads ported and polished. the labor and work involved would fall maybe a few hundred short of newer and better PI heads and intake.
the thread under Engine - 4.6L "What to do? Opinions more
than welcome." posted on 7/16/2002.

Actually, the best setup is P&P'd non-PI heads with GT cams,
as some of the "big guns" are currently incorporating into
their engine builds.
 

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silvershot said:
its not worth it to get stock heads ported and polished. the labor and work involved would fall maybe a few hundred short of newer and better PI heads and intake.
yea, what mager said. always something new developing in the modular world, this is he newest chunk of very very useful information.
 

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Re: You might want to read...

MagerThom said:


the thread under Engine - 4.6L "What to do? Opinions more
than welcome." posted on 7/16/2002.

Actually, the best setup is P&P'd non-PI heads with GT cams,
as some of the "big guns" are currently incorporating into
their engine builds.
so do you feel my statement is false?
 

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Heck, you'll see I said almost....

silvershot said:


so do you feel my statement is false?
the exact same thing in my first post.
J-Rob just showed me "I wasn't up to date..."

I'd say we were both a bit behind the development curve,
happens all the time - that's why we have the TCCoA.
 

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J-Rob.... you were correct in the previous post...

J-Rob said:


no, i was agreeing with you. misleading to quote the wrong information then say its useful information, thats my bad.
I was referring to my first post on 7/16 where I had
incorrectly claimed PI heads were better, and then you
initiated the straightening out process.....
 

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Yes and no...

As I learned, there are casting changes in the non-PI head that will allow for use of high lift cams on the later head, but not on the early head. I've seen a photo of a 1997 non-PI MN12 4.6L head with '01 PI cams and you must do something with the valve springs or there will be little to NO clearance at the high rpms. What does that mean to you...valve float and overlap. I talked with the person who has these heads and cams and we agreed by 5,500 rpm you'd have trouble. Ok, no big deal, you buy better valve springs and go with a better valve as well. That costs money though which adds to your overall cost.

A completely assmebled PI head with cams, springs and valves costs $850.00 or so for the pair. A non-PI head from '97 or '98 will require NEW cams (custom or PI). That means $$$$. You'll need some type of valve spring capable of handling the lift. That means $$$$. Then you have to port and polish the non-PI heads. Have them shipped to and from the shop...$$$$. Mager told us it costs $600.00 for just labor. So in the end, you have the same cost of a PI head (with a full assy). The difference is, the PI heads are ready to install, PLUS you could still have them ported on top of that (to flow more than the non-PI with full CNC porting). Those non-PI's are done.

Some of "those guys" who claim this works (to port non-PI heads) with great results are getting the parts and labor for under the cost that you and I would pay. So you look at what I laid out for you. Soak it in and figure out what is better for you.

A-Train
 

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Thanks for the straight scoop...once again

you can save a lot of money, hassles, and time if you
just know what you're talking about - or in this case,
listen to someone that does...

That post really helps,
 

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Re: Yes and no...

A-Train said:
I talked with the person who has these heads and cams and we agreed by 5,500 rpm you'd have trouble.
Johnny Langton doesn't seem to have any 6K rpm issues with his 97 non-PI heads and PI cams.
 

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Well if his valve springs are stock...

Seabass,

Then they must look like this. A photo of a 1997 non-PI head with '01 PI cams and STOCK 1997 valve springs.

Would you want that at 6,000 rpm? I wouldn't. But then again, I don't need to spin my engine that high to make decent power, hehe.

 

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A-Train,

You should talk to someone about getting that Newbie status changed! ;)

Joe
 

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Are you kidding....?

Rodeo Joe said:
A-Train,

You should talk to someone about getting that Newbie status changed! ;)

Joe
A-Train LIKES coming in stealth (it's that counter culture
attitude) and ripping us other posters a new.....well, you
get the idea.....and that's okay, it's somtimes painful,
butt you always....ah, end up with more or better info than you
had before......LOL

It's always nicer to get the info from a well stocked "library"
than from "advice" colums......:p Goes for you too Seabass...

Thanks guys...I'm always reading,
 

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Re: Well if his valve springs are stock...

A-Train said:
Seabass,

Then they must look like this. A photo of a 1997 non-PI head with '01 PI cams and STOCK 1997 valve springs.

Would you want that at 6,000 rpm? I wouldn't. But then again, I don't need to spin my engine that high to make decent power, hehe.

A-Train..I did a bit of checking a little while back..call Dan if you'd like to verify...
The '96-up STOCK valve springs are identical to the '99-up PI springs.Same part number,and the number had not been changed according to Dan.The '94-'95 uses a different part number.
JL
 

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Oh well that changes everything...

Johnny,

Well pardon me. Does that make the overlap not happen though? No it doesn't.

A-Train
 

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Never said that..but it's the same spring,and the same cam...and there is apparently not going to be a problem.It's is a bit worrisome looking at the spring compressed like that,but like I said..it's the same cam,and the same spring used in '99-up,so if you're running the PI heads..you've got the same hardware in your engine.
JL
 

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So after all this head discussion....

what's the most cost effective approach for the street or
sreet/strip person? Would a Fox Lake Stage I job, including
3 angle valve job for durability and better flow, with the
stock springs, on a set of PI heads, with stainless valves
optional, be a sensible way to go?

I realize you won't get the same gains as the high end CNC
$2100 set like Seabass is doing, but would this more basic
set still provide reasonably cost effective power gains?
 
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