Heartbeat is looking to spend $125k on a intake
 

Jim is looking to spend $125,000 on an intake. Check you basements and attics!

"With that being said, I will pay 125,000.00 for a Hemi Crossram intake".

125,000.00 what, I immediately ask myself?

Someone is at home hand carving one as we speak out of wood and will cast it in their basement this weekend. :smile:

Calling Super-Dave!! Can you whip one up?? :beers:

I believe someone could make an exact to the tees copy for 10,000-15,000, and that is on the high end.

too bad the mr fusion on my time machine is busted

Please correct me if I am wrong but aren't the early Hemi intakes cast out of Magnesium? Was the Winters Foundry working with Magnesium back in 1965 - 1968?

no, they were casted out of aluminum.

To make a one off it would need to be 3D printed.To make cast I think would run more.A one off billet maybe even more.Tom

Lee,

This is a crossram for a prototype Chevy 302, not Mopar Hemi.


Jason

Jim is trying to build a hemi 302 motor from the ‘off-road’ head package that I owned. Jim bought my complete Nos Hemi 302 setup from me ( less the intake base). I searched for over thirty years putting together the package. It had magnesium valve covers, but intake was aluminum. Years after purchasing the heads, I found the intake top and I even found NOS pistons for the setup, but never found in intake base ��.

There were apparently three hemi 302 complete motors built and some spare heads, etc.

I have seen another NOS hemi intake top plate besides mine, so I always thought it possible that an intake base exists.

If there is one out there, it will probably show up now.

The valve layout is different so what about a cam ?

The last time I was in Al Maynard's basement, I seem to recall an entire hemi-head motor on a stand down there. That was probably 2 or 3 years before he passed. Also, based on story of Al having the scrap contract for Chevrolet Engineering at the Warren Tech Center at one time, who knows how many parts for this setup were found. Does anyone know if these parts only surfaced through Smokey and/or Al or was there another known source?

Have to wonder why.

The only person known to have worked on the project outside of Chevrolet was Smokey Yunick. In three different articles over the years, he stated the Hemi 302 topped out at around 450 hp. The intake port design compromised exhaust flow.

The small-block hemi head was never released for production or used in competition. It's likely all the parts in existence came from Smokey Yunick's auction.

Over the years I have seen a few Z/28 built with the Hemi 302, one in The Shed collection. Not like he would be the first.

Well, being the first to do it is certainly cool. Being the last is also pretty awesome. Maybe he is planning to reproduce the system and needs the base for a mold?

Jason

That would be an expensive undertaking. The valves had longer stems, cam is completely different, need gaskets, etc.

It was a failed engineering project. Nothing more.

https://www.yenko.net/forum/showthread.php?t=115751

Funny this car says it was bought new from Roy Price Chevrolet in Bountiful, Utah. I know for a fact that Roy hated High Performance Chevrolets.

If Winters made the original castings for the manifolds, that would be the first place to start. They would probably still have the drawings, and the ability to produce the manifold. It might be cost prohibitive though.

Betcha it’s less than $125,000. Ha

Business must be real good at Heartbeat!

Angles are different, but the top looks pretty much the same as the regular cross ram top. I'm sure that the bottom is different, but can't imagine that it would be too difficult to produce a pattern with today's technology. Heck - someone modified the bottom mold to fit the hemi heads 50+ years ago.

The lower intake does not have a part number. The top plate has a part number for the lower and upper intake

Is it possible there's an extra top so Smokey could use different carbs? Say one setup with 600s and another with 780s? It would make it easier to change than to remove and replace the carbs. Heartbeat may be looking for something that doesn't exist.

As far as I was told, Bob bought both of the running test cars at the auction. 1 1968 and 1 1969, both dressed as Z/28's. Last I was up there, they were both there, but that's been several years now. The 3rd engine was on a stand at the auction and Bob told me Vic Edelbrock bought that one.


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Yes, cam is reverse lobe.. totally different. Fortunately I got a correct cam with the heads when I bought them.( I recieved the magnesium valve covers and the original rubber valve cover gaskets also)

Hemi top is interchangeable with all X-rams. Only difference I saw ( besides two part numbers) is the mounting flange for the carbs was larger and most likely stronger. Other than that they seem identical.

Tops are identical as far as the fit and function. If they modified a ‘production’ xram, they only used the top 1/2”.

The differences are drastic other than the top 1/2” where the top plate mounts. The port layout is very similar to a Boss 302. ( I bought an original intake to compare ports ) The rad hose mount comes out the front and not on top. Drastically different.

I asked Jim if I could 3-D scan the intake on the silver car when he owned it. I considered trading some ZL-1 parts for the motor out of that car when Jim offered it to me. But we did not end up making a deal and he ended up buying my parts from me.

There was also an auction in Phila years ago that had a hemi head stup along with an original ZL-1 block if I recall. I was out of the country or I probably would have bought it.

I went to that auction in Philadelphia. Bought some NOS parts & bid on the ZL1 block (which was badly damaged). Wish I would have known the significance of the hemi head setup:-(

I remember seeing the silver z at Floyd Garretts museum and that had to be a long time ago. Maybe 20 years ago anyway. I might still have a picture of it

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