Technical Keeping "Heritage" Going - God's Work

A recent one, a quick freshen of a Tall 4 Port for Jay Rust. This is a later version where Hilborn upgraded to a 3/8" Shaft. A little less work for me in this case. Beautiful car!

 

Here is a Hilborn Shotgun Injector, these seem to be king in the A/Fuel ranks. There are some cast with "Gene Adams" on the side that Hilborn made. This one had a really bent shaft and lost its shaft clearance. I cleaned up the blades, bores, and gave it a quick spit shine. Also bushed the casting for the shaft, made a new 7/16" shaft and also broached the ends for a 36 tooth serration. Broaching is something new I recently had to learn, very expensive tooling, but now I'm one of few in the country that does it for injector shafts when required.

 

I knew this was gonna be good!

 

WOW!
this is some very serious automotive porn
can’t take my eyes off of them

 

Question for you. Have you ever had a Hilborn for a slant six pass through your shop? I have the prototype unit #101 that was on the Dragmaster Dart Six C-Dragster that ran from 62-mid 64. The 11 production units that were sold from 68-72 were totally different and mounted to the head like astandart slant intake.
I have a deal made to buy unit #110 that has bern in Australia since the 70's and have been working on tracking down the rest of the production units.

 

I have not had one roll through here yet. I will mention that with all of the inventory that I have and with talking to the family and former employees there were a ton of injector models that never made it into any of their catalogs. I have many prototype injectors, some went to production, and some never went past a prototype. Stu Hilborn was trying to inject the world! I even have an injector for an Evenrude outboard boat motor!

 

Here is one I built for Daniel Bantz who is racing with the Southeast Gasser Association. Ray Barton built the 426 based Hemi for it and I sent them the injector to port match it so I could take over from there. Completely gone through and updated for a modern racing situation. I even bored the casting from a 2-7/16" to a 2-5/8". Lots of hand porting and hand blending, turned out very nice.



Been porting heads and intakes for going on 23 years now. Sometimes it feels good to get a grinder back in my hands.

My buddy TJ Zessin at Atomic Machine whipped out these stack adapters of my specifications.

These pieces were pressed together. I left a step to dial in the harmonic length the best I could for this situation and target peak RPM.
Fit and finish for a slotted fillister head screw.

 

Something, something about that old dirty joke - "injection is best" leaps to mind.

 

Absolute Artwork. Such Beautiful Work!

 

Thank you! What a great collection of projects, thank you for sharing all this history with us.

Bob

 

I do not have enough words to describe how fantastic your work and dedication is. Thank you.

 

Here was an interesting one. This was an early 1/13/16" injector for an Early Chrysler Hemi. It arrived with two different bore sizes from Hilborn (likely a repair at some point) so I bored them to be the same. Also made aluminum blades for it and completely went through everything. Basically, back to new after I was finished. Even had a rare set of stacks for it.



Here I'm using an Intrimik Gage to measure the bores size. It will measure down to a couple tenths (.0002) so they are very accurate.









Cool old article I found with a similar model on display. Racer Brown.

 

Wow. You are the BOSSMAN.

 

This one is picture heavy and I left many photos out.
What I started with, a beat up casting full of cracks, lots of welding to repair.

Cracks all along the nozzle bosses.

"X" marking all the bores with cracks. I have no clue how this happened, likely a wreck at some point.

Welding the areas in.

Layout showing how I plan to offset bore this casting. I welded the exterior in some areas to add some meat in some critical areas but I'm going from a 2.187 bore to a 2.400....... nobody has done this before to this casting.

Offset boring

New shafts and blades

Lots of porting and hand blending

Now the fun part - EFI Conversion but make it look mechanical as possible

Fuel Distribution Block with a TPS mounted where the barrel valve was. Still uses the linkage and fuel hoses.

Mockup, MAP sensor system is below the manifold

A little further along

Ready to head out the door

At the dyno, they never made an adjustment through many dyno pulls from where I had all the initial settings.

In the car

The car, absolute stunner!

 

I have put some thought into efi but could never get it all thought out. Nick, you make it look so simple! Another great and prefect looking job!

 

Outstanding craftsmanship !

 

Fantastic conversion , another work of art.

 

Here's a 2 Port Injector for a 4-71 Blower. Did some casting weld repairs on this one, completely remachined the casting, sent out for some polishing, and did a EFI Conversion that was a bolt on deal so it could be converted back to a mechanical injection piece and to help retain its value.

 

You Sir, are an Artist! You take pride in what you do, and it's quite apparent!

 

Here is one I did for Joe Jacobsen for the Southeast Gasser Group / Brew City Gassers. It originally was built for a -12 Brodix head (15°) and I modified it to fit a standard SBC 23° head. I have a nice mag cerakote color that is custom mixed. Looks killer with chrome, black, and brass accent colors.