Ted

I was really pleased to read that you plan to test two sets of C Yblock head on the dyno. I want to know if these "closed chamber" heads as opposed the the G heads more open style do require LESS total spark advance ( as the Chevy Vortex heads you have mentioned ) and DO SUPPORT higher compression ratio as the Ybock engineers interpreted Ricardo theory on cylinder head design.

The advance in camshaft theory since the Hot Rod / Edelbrock 1956 tests on the Ford 312 will be very interesting to follow and absorb and I look forward to see the results. Pete

Pete: It will be interesting to see how the "C" heads perform. However, according to John Mummert, who is considered the Head flow guru of Y-blocks, the main problem with those head is the poor flow of the lower ports. He says all efforts to get better equal flow from them isn't very successful...

Paul

Some real dyno numbers would be kooll.  C heads on a 5000 rpm engine vs. 113 heads at the same rpm, same cr.  Most guys dont go over 5K anyway.

Ted can wear out his mule with the possibilities.  Then he should publish a book with all the results. 

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.

Pete.   I’ve put the word out for both stock and ported ECZ-C heads that are ready to run.  So far, I’ve had no responses on that.  I do have some ECZ-C heads here but all need work.  If I can simply just put some borrowed ‘C’ heads on the dyno mule and do the testing without having to actually build up the heads, then all the better from this end.  Time being what it is, I’ll not be porting a set of C’s for a cylinder head test but will consider fixing up a stock set just for a comparison against the other heads.

 

So here’s the call again.  I’m in need of stock and ported ECZ-C heads for an upcoming cylinder head test on the same +060 over 312 dyno mule that’s been used for a majority of the other tests thus performed so far.  It would be a shame to do this head test without the ‘C’ heads being represented.

Lorena, Texas (South of Waco)

Ted, I didn't hear the call the first time. Although I am in the middle of trying to get the LSR Uni ready we (Charlie and I) have a few "C" heads in the pile and I would love to see what a set of these with a little port work would do.  It may take a while but I'll see what I can do.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

Tim:

A little off topic, but do you have an EBU '54 head?  A guy called me yesterday looking for one for his "correct" '54.

Ted, I have a pair of Cs that are unported but milled .060, I once used them for my 260 HP '56.  I freshened the valves and put them in plastic bags 20 years ago.  You can use them if you want.  Shipping is expensive though.

John - "The Hoosier Hurricane"

I had one EBU head but it now belongs to Charlie McCraney.  I guess he still has it.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

John.  I have no ’54 heads in the collection.  Like Tim mentions, the only one I’m aware of floating loose is the one that Charlie has.  Tim was good enough to give me a tracing of the combustion chamber on that one before sending it to Charlie.  Regarding the C heads you have, depending upon what Tim comes up with, I may be interested.  If it comes to that, we’ll discuss how to get them down here.

 

Tim.  I’ll take you up on your offer on the C heads.  And I can wait or put off at least part of the head test depending upon your schedule.  When the heads get close, just give me a call and we’ll discuss shipping options.

Lorena, Texas (South of Waco)

Ted  I have a pair of c heads that was on my 56 until i put g heads on.They have had .015 milled ,other than that they are stock heads.They probably have 5 or 6 thousand miles on them after valve job and new springs.I did match the intake ports though.Shipping to you from ohio would probably be expensive Carl Lynn

Ted, I have a more or less pair of ECZ-C heads you can have. 1 has the freeze plug on the end and one doesn't. They came off the same engine but I don't know the history.

Complete with valves and springs of unknown condition.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico