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Prerequisites in a replacement head design

Posted By Ted 16 Years Ago
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MoonShadow
Posted 16 Years Ago
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There are a series of posts on this forum on the Argentine heads. They are more simular to the 289 type. Someone was going to get a set and do some flow testing but I havn't heard anything for a while. Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire
PF Arcand
Posted 16 Years Ago
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Pat: I'm sure many who are into max performance would agree with your suggestions re the chamber & head gasket problem. However.. I don't think Mr. "Ricardo", who's theory was used in the combustion chamber design of the Y-block, would appreciate you calling it "odd ball"! Apparently, the design was for high quench & hi turbulence, plus as I understand it, Ford engineers for saw higher compression ratios in the future, for more efficiency. We had them for a while, but unleaded fuel & emission standards killed that. Also, the design was intended to be more detonation resistant that a regular wedge chamber. And probably is.. I don't claim to be an SAE or anything, so Ted or other engine Gurus here, might want to comment further..

Paul
suede57ford
Posted 16 Years Ago
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It would be nice to redesign the chamber shape, so we could use a round hole type head gasket like all the later Fords do.   The odd-ball shaped headgasket/combubustion chamber opening limits the ability to have really good head gaskets made.   A circular hole in the gasket would make O-Rings easy to do as well.

If a windsor/scrub combustion chamber can use flat-tops and make compression and use a circular head gasket, what would it take for a Y-Block to do the same if were are improving it.

I would prefer the heads use as many stock parts as well.   Head gaskets would be easy and cheap to get custom made if necessary.

Pat Fleischman


PF Arcand
Posted 16 Years Ago
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Ted: I'm probably not in the market for aluminum heads, but it occurs to me that some of the modifications that have been suggested, which could effect pushrod lengths, rocker arm stands, valves stem length, rocker covers & so on, "if' required for the new heads, will run the cost of an already expensive conversion up considerably. For many possible customers, it may make the whole thing cost prohibitive, thereby reducing potential sales, in an already limited market.. Just my thoughts on it..

Paul
Jerome
Posted 16 Years Ago
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Reading Ted's head's thread's, there is only one reason I would buy new heads. My ECZ-G's gave up the ghost and I couldn't find another ECZ-G or 5752-113 set to port. Given that:

 1) As the restorer on a budget, I'd want a 100% authentic looking, 100% backward attachment compatible, 100% performance optimized, durable-as-dirt cast iron, posted, ECZ-G type casting, hardened seats, sbc 2.02" intakes, sbc 1.60" exhausts, sbc valve guide seals, sbc valve guide boss OD's, sbc valve spring shim compatible, 0.600" valve lift capable, flows as good as John Mummert's race port (so I don't have to port them myself), available in 69, 72 & 82cc's, starting with 69cc's. 

2) As the racer with deep pockets, I'd want heads as mean as the best of the best sbf's, aluminum naturally, 100% sbf intake compatible giving full access to best air and fuel intake combinations sbf owners enjoy - even fuel injection), optimized to the Y-block's smaller cylinder diameter, in a variety of combustion volumes from pump gas to blowers. 

Either option offers more rpm breathing potential than a stock Y-block bottom end can safely handle. To fully tap that, in addition to head cost, one would need to upgrade the intake manifold (either find and port an ECZ-9425-B or invest in a Blue Thunder), carburetor (600 cfm or better), fuel pump (1/4" NPT in/out), fuel line (3/8"), fuel tank (1/4" NPT out), oil pump, oil pump drive, connecting rods, pistons, rebalance the crank, upgrade the cam, lifters, push rods, rocker arms if 1.43's, valve springs, retainers, locks, harmonic balancer, add a skirt brace + + + .... 312 owners might even consider a stronger 292 block to drop their crank in. Then there is the vintage drive train. Neither vintage Ford-o-matics or standard manual 3 speeds are up to what these heads can dish out.

Count me as an option 1) 69 cc head buyer 

Jerome

63 Red Stake Bed
Posted 16 Years Ago
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Maybe some R & D on Combustion chambers that are better than that of the ecz-g, c, or the 471's could be useful esp. for the performance & efficiency end of things.  Some on this site are always looking for the possibility of using ethanol.  Maybe some would be interested in more efficient burning of the fuel in relation to the newly modified runner alterations &  flow characteristics these castings would have.
63 Red Stake Bed
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I would hope to see 1.92 intakes & 1.60 Exhausts, as standard issue with capability of 2.02/1.64 for the race end of things.
charliemccraney
Posted 16 Years Ago
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I don't know if it was me who had mentioned that problem but I had to grind a little on the driver side valve cover to get it to clear the Blue Thunder manifold.  It is toward the rear, I think the part of the casting where bolt goes through the manifold.

I don't think that raising the rail is a good idea.  I have barely enough room between the master cylinder to get my valve cover off.  That is without power brakes.  I am running a 'vette master cylinder but I don't think this will matter a whole lot.  I think that many of the people who buy these heads will have upgraded there brakes with a dual mc and probably disc brakes.


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Glen Henderson
Posted 16 Years Ago
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Ted, have you ever opened up a can of worms, good going! I will make a few comments and maybe confuse the issue even more.



1. Stock appearing vs smooth finish: In my opinion for the head to widely accepted it would have to be stock appearing for the restoration guys to accept it. The only problem that I see with this is that the Blue Thunder intake is the only one available at this time and as Frank stated they are having problems getting castings. A head designed after the small block Ford might offer more intake options including blown or injected.



2. Valves and associated components: I think that any off the shelf items (sbc or sbf) could be used to increase performance and still appeal to the resto guys. The idea of a complete bolt on package is very appealing, but should be offered bear for the individual that wants to install there own components.



3. Thicker Deck: No brainer, this should improve reliability and allow anyone who wants too reduce the cc's by milling the head.



4. FE head bolts: Good idea, but what about offering them with 7/16 hole's, but with enough material so that they could be safely drilled to 1/2".



5. Iron vs aluminum: My vote would have to go to aluminum, less weight and I think that they would look just plain cool with Frank's cover, water pump and a Blue Thunder intake. The resto guys can paint them.

Glen Henderson



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yehaabill
Posted 16 Years Ago
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Y-guys     I'm not up to speed on the head design but, I see some want smooth,

               some rough...IF the heads are interchangeable,.. why not make one

               end smooth the other rough. Just a thought....Bill

Bill

Pelham,Al



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