[67cruiser]

Ok, can,t figure it out, drivers side head towards rear of head outside there are 2 bosses sticking out with usually a hole in them, makes for torqueing head bolts back there a pain in the butt plus ive never seen anything ever bolted there.So way are they there????
You would think they would of been milled flat against head. I know if heads come off again thats what im doing.Where there located i can,t see anything bolted on there.
They are flat on the outside and sure you guys know what i mean.Funny you don,t notice
these things untill heads are bolted on!! LOL.

[johnta1]

The ones for the AC compressor mounts?



Most are made so factory equipment will bolt on.

[b-man]

Definitely there to mount the A/C compressor.

Since there are no separate right and left side head castings there are unused mounting bosses on one head, same as factory iron heads from '69 and later.

[67cruiser]

No offense, never seen a AC compressor mounted that far back to the firewall. Butt if you guys say so.ok

[b-man]

The compressor is mounted on the passenger side head, towards the front of the engine of course.

The point being the same casting is used for both heads, so one head has the boss located where it won't be used.

[Brian Baker]

I'm reading this question, and the response to b-man's reply, and I'm thinking to myself "you gotta' be sh***ing me, right?"

[Pontiac Fool]

If you milled off those bosses then you will make that head basically a drivers side only head.

Then if you ever sold them to someone who needs the AC mount he would have to make sure to not bolt the hacked up head on the pass side.

I'm sure that sometime in the future you will replace the head gaskets or had the heads ported then after all bolted on post some thread ""where did the AC mount go?""LOL

Probably go through 5-10 posts wondering why the porter hacked up your pass side head head. Then someone will you that you did it to the head & then after 10 more posts trying to convince us that it was the drivers side head you did it too.... I cant wait LOL

Both heads are identical. Place them against each other intake ports to intake ports & then they would be opposite of each other

[Tom Vaught]

I personally use the bosses to mount the bracket for a charge air (water to air) inter-cooler. I am happy that the aftermarket put the things on the heads otherwise it would be a royal PIA to fab up a head stud type mount.

Tom Vaught

[68hotbird]

I use that boss on the back to run my rear cam driven a/c compressor keeps the front of the engine much cleaner and neater. I am currently applying for the patent on the rear cam adapter to run this compressor set up. LOL

[marks73ta]

Can u be more specific on that mount and drive or are u being secretive due to your patent application? Which would be understandable.

Mark L

[65WJ]

Originally Posted by 68hotbird

I use that boss on the back to run my rear cam driven a/c compressor keeps the front of the engine much cleaner and neater. I am currently applying for the patent on the rear cam adapter to run this compressor set up. LOL

Originally Posted by marks73ta

Can u be more specific on that mount and drive or are u being secretive due to your patent application? Which would be understandable.

Mark L

I think he is be facetious. If not it may be powered by a flux capacitor.

patrick

[lust4speed]

It's a shame to spend all that money for a patent when the application didn't include provisions for a fuel pump drive and remote distributor mounting - but maybe it's not too late to at least branch off and get the power steering pump back there.

[67cruiser]

Both bosses sticking out from the head next to sterrring column out of firewall. square with flat areas milled on them. Right straight up between no.5 & 7 plug.

[johnta1]

That's the AC mount bosses.

Take that driver head and put it on the passenger side and those bosses are on the front, to mount the AC.

Heads were made to fit either side of block.

[johnta1]

Here's a schematic of an Ehead:



The 2 bosses on the right side of the pic are the AC mount bosses.

[68hotbird]

The patent address the cam core needed for the drive system and the seal arrangement on the rear cam plug to keep oil leakage under control. There is also a key component to get the A/C compressor speed correct as the cam only runs half the speed of the crank. Hope this helps. LOL!!!!!

[johnta1]

The patent address the cam core needed for the drive system and the seal arrangement on the rear cam plug to keep oil leakage under control.

Try this patent idea:

[Bud Lyons]

Originally Posted by 68hotbird

The patent address the cam core needed for the drive system and the seal arrangement on the rear cam plug to keep oil leakage under control. There is also a key component to get the A/C compressor speed correct as the cam only runs half the speed of the crank. Hope this helps. LOL!!!!!

If you used a pulley that's 3 times bigger and a belt that's half the width it should give you a compressor speed that's twice as fast as factory. If you then put a return line on that's a 1/4 of the stock size it should now take twice as long to cool off the car. But since your using alum heads the cooling delta T will be perfect.

[Rob B]

Buy the damn Prius and be done!
You need those holes for the mounting bracket(s) for the flux capacitor if you ever want to race into the future....

[GOAT WHORE]

Originally Posted by Brian Baker

I'm reading this question, and the response to b-man's reply, and I'm thinking to myself "you gotta' be sh***ing me, right?"

Yes, but at the same time no