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55 Hilborn Injected Pontiac.. you have to see quickly. edit.. addional pics

  
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55 Hilborn Injected Pontiac.. you have to see quickly. edit.. addional pics

 
wayne712222 wayne712222
Moderator | Posts: 165 | Joined: 10/13
Posted: 01/25/14
07:49 PM

i just spotted this online...

http://losangeles.craigslist.org/lgb/cto/4269002276.html

i don't know how long the ad will be up..

1955 PONTIAC HILBORN FUEL INJECTED 421 SUPER DUTY 4 SPEED

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what wild headers..

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be sure to save the images you want guys.. when its gone .. its gone..

specs for those who don't click on the ad
421 super Duty, Hilborn injection just "gone through" and flowed by a retired Hilborn employee. Hilborn confirmed Vic Hubbard of Vic Hubbard Speed and Marine of Hayward was the original owner. Look him up, serious very fast winner at Fremont in the 50's to 60's

Barn find with title

Injection also has the correct "T" pump for the injection, this was a "street" car and also has a surge tank on the firewall to be streetable.

Custom built long tube tri y headers, pyrometer on steering column to tune injection, Jones Motorola tachometer in dash.
Muncie 4 speed, Hurst shifter, stock bench seat and original interior.

3.50 posi rear gear in the legendary Olds Pontiac bullet proof rear end complete with extra half leaves in front half of rear leaf springs

A true sleeper !!!

421 motor confirmed one of 178 produced for Pontiac factory race program.
Car has rust in front clip, rockers and c pillar however floor boards frame and body mounts are solid as a rock.

Engine starts and runs, no smoke , knocks or leaks

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01111 8Ujp3f4kgx8 600X450
00W0w 6I9unmjq76w 600X450
00M0m Cxsym9zk1l3 600X450  

shyrgfuh70 shyrgfuh70
User | Posts: 93 | Joined: 12/13
Posted: 01/26/14
12:25 AM

hi

cool post, cool find.

i would love to have that.

You know what that is don't ya? It is real white lightening runner, lol.

I USED TO LIVE 2 MILES FROM A VIC HUBBARD PARTS STORE AND BOUGHT PARTS THERE OFTEN.

WHAT DO YOU KNOW ABOUT THIS RARE PONTIAC RACING ENGINE CLAIM.

WHAT IS A FACTORY BUILT PONTIAC "RACING" ENGINE?

did that engine come in that car?  

wayne712222 wayne712222
Moderator | Posts: 165 | Joined: 10/13
Posted: 01/26/14
03:52 AM

WHAT DO YOU KNOW ABOUT THIS RARE PONTIAC RACING ENGINE CLAIM.

WHAT IS A FACTORY BUILT PONTIAC "RACING" ENGINE?



not a whole lot..  but i did see this..

For 1962, Pontiac officially introduced the 421 Super Duty, a killer Nascar engine sporting 2 four barrels, 11.0 pistons, and 405 horsepower at 5600 rpm. Ahem. Okay, we believe you. Hand built in a special factory tool room, the first Super Duty 421s debuted late in 1961 as race only engines. Pontiac was vague on their output, but estimates ranged from 373 to 405 bhp. These were the largest displacement engines  offered at the time, and they helped spark Detroit's cubic inch war.

NHRA rules changes for 1962 required engines and body parts for the stock classes to be production pieces. This forced the 421 onto the official equipment sheet as an expensive, limited run option. Fewer than 180 were built for 1962, its peak production year. Most went into Catalinas, though 16 or so were installed in Pontiac's new personal luxury coupe, the Grand Prix.

Street versions of the Super Duty had twin carburetors.

The '62 Super Duty 421 was officially rated at 405 bhp, but actual  output was closer to 460. Though street legal, these again were race ready engines with four bolt mains, forged rods and crank, solid lifters, and NASCAR heads. Stock car racing versions used a single four barrel, but street/strip Super Duty 421s had twin Carter 500 cfm four barrels and an aluminum intake manifold. They easily turned 13.9 @ 107 in street trim, getting from 0-60 in 5.4 seconds.

Free-flow cast-iron headers were fitted with easily removable exhaust dumps. Only three and four- peed manual transmissions were offered; Pontiac's automatic wasn't strong enough. Reinforcing the division's hard nosed performance attitude were a host of Super Duty options, including aluminum front end body clips and a weight cutting modified frame, saving about 110 pounds. To shave another 40 pounds, the factory would fit aluminum exhaust manifolds. They were intended only for quarter mile competition; Pontiac warned that subjected to more heat, the headers would melt. That would be cute, wouldn't it?

For 1963, Pontiac poured on so much performance that only an order from the highest power could slow it down. Unfortunately, that's what happened with the Super Duty Project. Super Duty 421s were back, tougher than ever. Compression jumped from 11.0:1 to 12.0:1, while other tweaks increased maximum shift points by 500 rpm to a screaming 6400 rpm. The four barrel version, set up for sustained high speeds, had 390 hp. The dual quad drag variant, now with aluminum exhaust manifolds standard and steel manifolds optional, was again underrated at 405 hp. A second dual quad drag rendition was introduced with a 13.0:1 squeeze. Pontiac timidly rated it at 410 hp.  

tuffnuff tuffnuff
Moderator | Posts: 2534 | Joined: 12/09
Posted: 01/26/14
09:36 AM

That is quite a relic to find and seems to be in condition worthy of restoring.,. however, the 421 did not make it's debut until 5 years (1961) after this car left the dealership.
It's still a nice piece of Pontiac racing history.,. I would love to have/race this relic and turn back the clock of time.
It would be a thrill.

More 421 History:

http://musclecars.howstuffworks.com/classic-muscle-cars/1963-pontiac-super-duty-421.htm

Smile  
When The Flag Drops.,.

tuffnuff

The Bull ***t Stops.,.
tuffnuff

P. Engineer, Engine Builder

shyrgfuh70 shyrgfuh70
User | Posts: 93 | Joined: 12/13
Posted: 01/26/14
12:42 PM

ya gotta love the generator, the 4 1/2' long headers and "rat fink" style velocity stacks.

What are those line coming out of the firewall for?  

idrivejunk idrivejunk
Addict | Posts: 4987 | Joined: 12/09
Posted: 01/26/14
02:16 PM

Its beautiful and period-legit  Cool  The cat who streeted that had to be cool. Thanks for the retro flash, Wayne.

While you're in that mood-

"road runners"- 12 minutes of 50s hot rods on youtube  
idrivejunk

gtojack1366 gtojack1366
Guru | Posts: 1224 | Joined: 11/09
Posted: 01/26/14
03:35 PM

What are those line coming out of the firewall for?  

The lines are not coming out of the firewall .There coming out of what looks like some kind of fuel pressure regulator bolted to the firewall .  

wayne712222 wayne712222
Moderator | Posts: 165 | Joined: 10/13
Posted: 01/26/14
03:51 PM

well... i don't know who did it .. but somebody flagged that ad.

55Pontiacrumrunner Zps7738e694


on the firewall. with hoses to the fuel injection..
a holley float bowl to keep the surge tank at a proper level. the big diaphragm thing is part of a fuel pressure regulator set up.
55Pontiac421hilbornfuelinjection Zps9a342f39

Tach in the dash.. pyrometer on the column to monitor exhaust temps for monitoring the fuel injection..
55Pontiacrumrummnertachpyrometer Zpsd92ed93b


the LONG TUBE TRI Y headers...  wow...

55Pontiacrummunnersuspension Zpse05e0a77


i hope that the rest of you saved the other pictures..  

raguza123 raguza123
Enthusiast | Posts: 506 | Joined: 05/12
Posted: 01/27/14
12:19 PM

Yes they did, why I wanted to see it, have to save ur pics  

ROWSLEY ROWSLEY
Guru | Posts: 981 | Joined: 07/11
Posted: 01/27/14
10:56 PM

welcome back rags! wayne i will ask my old bud don (just turned 88) is he remmembers the car.  
76 455/4spd TRANS AM
69 GRAND PRIX 455/5SPD

JesseKiser05 JesseKiser05
New User | Posts: 1 | Joined: 02/14
Posted: 02/10/14
07:07 PM

Did anyone happen to catch a number or email address? I'd love to contact him or the new owner about shooting it for a magazine.  

wayne712222 wayne712222
Moderator | Posts: 165 | Joined: 10/13
Posted: 02/10/14
07:26 PM

i think i saved the ad.. it was a 760 phone number.. i will look around for it.. be sure to check your private messages.. i won't post it where it can be seen publicly..

perhaps one of the other members also saved it and will private message you the number..


check your pm... its there..


more pictures above.. get them while they are hot.. more pictures above.. get them while they are hot..

say.. try to take some audio recording devices.. so we can hear it run..  

thinman56 thinman56
User | Posts: 107 | Joined: 04/13
Posted: 02/11/14
03:12 PM

Awesome vintage stuff.  Here's a factory-replica 421 SD making 488 HP and thrashing a Chevy 409 at the dyno:

http://www.youtube.com/watch?v=gNg569agwiU  

tuffnuff tuffnuff
Moderator | Posts: 2534 | Joined: 12/09
Posted: 02/12/14
08:03 AM

PONTIAC - The Glory Years!

http://www.youtube.com/watch?v=3bfrls2gotQ

400Pontiac 1

Smile  
When The Flag Drops.,.

tuffnuff

The Bull ***t Stops.,.
tuffnuff

P. Engineer, Engine Builder

Brazil Brazil
Addict | Posts: 3888 | Joined: 06/09
Posted: 02/12/14
12:12 PM

"Pontiac, The Glory Years" is an excellent 5 part video. I hope everyone pours a cool one, grabs a seat and takes a watch. It reminds us what our tribe is all about.  

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