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Old 06-02-2006, 01:03 PM
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Cutting for 2.02 1.60's

Hey guys, I have a set of 1969, 441 heads, for my 355 i'm building. They have alot of wear especially in the seat areas(hopefully i'll have pics up soon) and was wondering if instead of installing new seats, i could just cut them up to the next size which would be 2.02 1.6, without problems. Some of the seats have already been replaced, too.

The heads also have some wear in the valve guide area( i spent the time measuring with a small hole gauge and could post the individual wear areas on every valve) and was wondering what brand of of bronze valve guides you suggest, i heard k-liners were good and that they were junk. oh yeah and some of the seats have been knurled already so that's not really an option.

If i could i'd like to have these all put together with new valves, machine work, and liners for less then $450, because a new set of vortecs can be had for that much.

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Old 06-02-2006, 06:41 PM
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Quote:
Originally Posted by stroker_SS
Hey guys, I have a set of 1969, 441 heads, for my 355 i'm building. They have alot of wear especially in the seat areas(hopefully i'll have pics up soon) and was wondering if instead of installing new seats, i could just cut them up to the next size which would be 2.02 1.6, without problems. Some of the seats have already been replaced, too.

The heads also have some wear in the valve guide area( i spent the time measuring with a small hole gauge and could post the individual wear areas on every valve) and was wondering what brand of of bronze valve guides you suggest, i heard k-liners were good and that they were junk. oh yeah and some of the seats have been knurled already so that's not really an option.

If i could i'd like to have these all put together with new valves, machine work, and liners for less then $450, because a new set of vortecs can be had for that much.
The short answer would be to go with the VorTecs.

tom
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Old 06-02-2006, 06:58 PM
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Lets see;;; Valves, springs, guides, Bowl hog, seats, probably need to be milled flat.. GREAT for the machine shop owner!!! Your pushing at least $550.00 labor and parts. STILL have old heads worth $250.00 maybe,,, I think the smart move would be aftermkts, or Vortecs.. Tho you could still bring em in. I need somebody to make this months truck payment!!!!
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Old 06-02-2006, 10:34 PM
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Quote:
Originally Posted by stroker_SS
Hey guys, I have a set of 1969, 441 heads, for my 355 i'm building. They have alot of wear especially in the seat areas(hopefully i'll have pics up soon) and was wondering if instead of installing new seats, i could just cut them up to the next size which would be 2.02 1.6, without problems. Some of the seats have already been replaced, too.

The heads also have some wear in the valve guide area( i spent the time measuring with a small hole gauge and could post the individual wear areas on every valve) and was wondering what brand of of bronze valve guides you suggest, i heard k-liners were good and that they were junk. oh yeah and some of the seats have been knurled already so that's not really an option.

If i could i'd like to have these all put together with new valves, machine work, and liners for less then $450, because a new set of vortecs can be had for that much.

It probably only makes sense to go through a set of heads like this if you have access to the proper equipment and you can do it yourself.

Yes, you can skip seat inserts and go to a larger valve to put the seat up into virgin material. However, if your heads have already had inserts installed, then you will have to either use the existing ones or replace them.
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Old 06-04-2006, 05:00 PM
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How much are new seats going to run me, i'm pretty sure that since the heads are so old i'll have to replace all of the exhaust seats with hardened seats, and for the intakes would it just be possible to safely cut the old seats for larger valves.
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Old 06-04-2006, 07:40 PM
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The guides have to be done before seats can be cut. 441's will need hard exhaust seats installed. The intake seats are cut in the head material. But, you can't just cut seats!! That is like putting a 36" entry door over a 24" opening. on a house wall.. Looks pretty but what a waste.. The Bowls (area under seats) have to be opened up to the inside diameter of the larger seat opening. The chambers also have to be cut back a bit to unshroud the bigger valve. Otherwise the valve is just opening into a vertical wall with no air flow taking place..

Around here you will have $160.00 min in the guides (liners). Cut/install hard exh seats $120.00. Bowl hog intakes $65.00.. Cerdi cut intake seats $80.00. Adds up quick..
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Old 06-05-2006, 01:09 PM
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Excellent advice throughout this thread.

The only thing that I would add is that I/we have had excellent service from installing gray-iron valve guides back into iron heads. At least we have never had any "bronze failure". LOL.....

The factory used iron and even hi-po engines ran 100,000 miles.

Upgrading to a set of Scoggins-Dickey Vortecs for about $ 650 is a good alternative. (guides already milled for lift, decent valves, and springs for higher lift)


www.readershotrods.com drag cars/georges
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Old 06-05-2006, 02:35 PM
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Can somebody whose upgraded to vortecs give me the TOTAL price you spent, int manifold, heads, head mods, valve covers etc. It just doesnt seem cost effective when dart iron eagles can be had for 700 complete, and i already have the manifold etc.
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