I gained info with earlier thread and now getting ready to install the 1979 head onto my 1965. My 65 is low miles. It turns that my junk yard 1979 head was a very good core, I did however, need to send it out to machine shop for I new exhaust valve and a complete grind.

I definitely have a better shaft and rocker arms on the low mileage "seats needed" 1965 head.
So, I pulled out the soft plug ends and hot tanked the 65 shaft to reuse.

So here I sit with all the bolts in one solvent bucket.


Question is Re: I only found one long rocker shaft bolt in the mixed bolts in solvent container.

Is that bolt the rear bolt for the 79 head and not the 65 head or ?

Any other alignment problems to watch for, such as end for end, and belly up? GL

The long one is for the 1965 if it's a straight bolt. The rear/oiler bolt on 1979-1987 heads is "tapered"/has a step in it. You'll know when you see it as it will not be like any of the other rocker bolts.

Yes, there is a specific placement of the rocker to ensure correct oiling.

See this thread for picture of the stepped bolt (marked hydro in the picture but is stock on the late heads of either type).

http://www.slantsix.org/forum/viewtopic.php?t=46756

And oiling/rocker orientation = oiling hole should face the valve springs.

Good Luck

-D.Idiot

That sounds good and should get me going,..

About the smog head,... I have the head O'Reilly's webpage notes as, 2D12. (smog equipment version (Hole)

Is there any metal tab available so I can block mine off ?

On a few V/8"s I recall useing the tube and pinching it at the very beginning and it always worked fine. However in this slant 6 case it was missing at the junkyard purchase.

Oh yea,.. is this head when blocked off same or less performance than the no hole head Re: 2D09 O'Reilly's webpage?

Thanks again, G

Hi GL/6
I am note sure about what smog head hole you refer to. I have a feeling that the O'Reilly refer to the V8 heads. They have exhaust gas ports through the cylinder heads, and into the heating channels for the intake manifold and for an EGR valve. There are no such ports on a SL6 head. Take a look at this thread about SL6 related emissions equipment, it containes detailed information on all those devices.

1) On the SL6 intake manifold, there may be a hole for an EGR valve. It can easily be blocked off by a metal plate with two bolt holes.

2) Some later SL6 heads have provision for air injection into the intake ports, also very easy to block off, if they are unneccesary/unwanted.

There may be legal issues, that require you to keep such equipment intact.

I would recommend that you take a look in the articles section (click the Home button, and then Articles), there you'll find an article about cylinder heads, as well as other relevant engine info.

I would also suggest that you look at the Frequently Asked Question (FAQ) in the engine section. There you'll find a link to Best of Doctor Dodge, where there are several detailed engine build-ups by Doug Dutra. They include a large amount of pictures, and several questions and answers around the builds. Lots of info on cylinder heads, with many building tips.

BTW, the FAQ also contains links to pics of sawed-through cylinder heads, for an 'inside' view!

Olaf

_________________
Aspenized

There is a plate that was an option to block off that hole, and could be found on the back of V-8's as well, but is a junkyard item, per above finding one with a tube and pinching it off is option #2, option 3 is to drive a plug into the hole and make a plate to hold it into place.

I have a "447" head on my race only engine and it's not necessary to plug the ports just the hole in the back of the head since the ports just lead to nothing at that point. Performance will only change if you put a little time into the ports with a die grinder...

He's putting it on a 1965, no smog equipment there!!


For reference, here's the smog head listing at O'Reily's site,click "more" by the pics and the one marked "right side" will have the hole on the bottom right of the head, it's for the late model smog charge tube to shunt some exhaust back into the air cleaner in the mid-70's models, and the AIR was used with it until the 80's when the AIR was plumbed into the cat. convertor.

http://www.oreillyauto.com/site/c/detai ... ppt=C0332#

-D.Idiot

Correct. !!

Useful for all, I would think,.. Sheeze , as old as I am,.. too learn from an upstart, Ya must luv it. Whoa,.. is me. .

Ez on my whoa,.. pu'leeze! ( : Gordo

Naw, s'all cool!

The main part is the willingness to learn and doing it, then passing it forward.

-D.Idiot

Yes!

_________________
Yeah....Im the one who destroyed this rare, vintage automobile.....

Interesting, was that something that preceded the EGR valve on the manifold, was used instead of it, or in addition to it?
I know that it most likely don't apply in USA, but there are places in this world where an upgraded engine may be regarded as a modification of the vehicle...

Olaf

_________________
Aspenized

It precedes the EGR and is used with it. According to my 1978 and 1979 FSM it's called the aspirator valve and is required on all federal and canadian vehicles equipped with Catalytic convertors...it has a valve in it that allows the exhaust pulses to siphon air from the air cleaner (tube draws from a nipple on the bottom of the pie tin between the air filter element and the carburator air horn), this is supposed to draw clean air into the exhaust and help the cat convertor to better 'clean up' the leftovers...everyone I've salvaged have been carboned up pretty good along with the passages in the head...

FYI.

-D.Idiot

I had no idea that the V/8 tube had the same bolt up to the head. Thanks for the info. Now I can dig thru my excessive parts, to solve my blocking off of the hole.

This carbon discussion is not intended for any research,... just a comment.

This nice looking 79 junk yard head was heavily carboned under both intake and exhaust valves. That begs the question wonder bout ... Smog pump / Catalytic convertor on a pickup? I thought they were exempt. Perhaps a California truck?

I noticed that the 1965 rocker arms are different than the 1979.

One has the small half moon cut out for the excessive oil drain facing forward when mounted to the head. The other year model faces aft when mounted onto the head.

Is this a common known? If so I never found it when searching.

GL however, does stumble from time to time. LOL

Some feel that asking a question that has been answered should instead of asking should search threads instead of asking anew.

I see their point, but can't quite fully agree. when a newbie does his search he does not readily recognize the thread title as perhaps that more active member likely does.

Besides that would make this forum less active.

So,... here goes one of those,... stupid questions.

On a thread here (under search) I was told NAPA is where to purchase a accelerator pump for the carter single barrel.

Subject vehicle is a 1965 D100 with carter 1 barrel. My local Napa wants 14.50 plus they tell me their supplier from So Carolina will ship only with UPS and my shipping charges will be from a low of 6.00 or perhaps 9.00 or 10.00. Wha,.?? maybe 24.50,!!

So, I ask what is the part number I should be shopping for,.. or suggestions on how to not be ripped that much. I do not need a kit, it runs sweet except for, shrinking, old age wrinkles caused from the lack of testosterone's.

I sorta understand bout that, LOL, . but still need enlightening on where to purchase a new solo accelerator pump.