Adjustable Fuel Log for 4150 Holley Style Carbs

#91011603

Adjustable Fuel Log for 4150 Holley Style Carbs

Name: Adjustable Fuel Log for 4150 Holley Style Carbs
Brand: Speedway Motors
SKU: 91011603
Price: 69.99 USD
Availability: InStock
Rating: 3.4 (14 reviews)

14 Reviews

7 Questions

Fuel log is made from premium aluminum to ensure long life and durability
Designed to permit removing/replacing either bowl (or both) without having to use a wrench on the fuel line
Features 7/8”-20 threads to go directly into fuel bowl

$69.99

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Product Summary

Universal Fit, 7/8"-20 Male Outlet Fitting, Aluminum

Fuel log is made from premium aluminum to ensure long life and durability
Designed to permit removing/replacing either bowl (or both) without having to use a wrench on the fuel line
Features 7/8”-20 threads to go directly into fuel bowl
3/8" hose barb inlet, 1/8" NPT female port w/ plug on inlet side, 9-1/4 Inch Centers
A double O-ring in the slide prevents leaks

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Key Specs

MFG. Part #	91011603
Brand	Speedway Motors
Outlet Fitting	7/8"-20 Male
Material Type	Aluminum
Inlet Fitting	3/8" Hose Barb

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Speedway Motors 91011603 Details

These CNC aluminum fuel logs are adjustable which allows them to fit carbs easier. It is designed to permit removing/replacing either bowl (or both) without having to use a wrench on the fuel line. A double O-ring in the slide prevents leaks.

Features 7/8”-20 threads to go directly into fuel bowl
3/8" hose barb inlet
1/8" NPT female port w/ plug on inlet side
9-1/4 Inch Centers

Specs

Distance between lower nut above the threads and the middle nut is 3/4". From bottom of lower nut to bottom of second nut is 1" and this allows for the 1/4" thick nut. Overall length bottom of threads to top of blue nut is 3 1/4". Bottom of threads to underside of nut is 3/8".

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA Prop 65

CARB warning

Speedway Motors 91011603 Specifications

KEY SPECS
MFG. Part #	91011603
Brand	Speedway Motors
Outlet Fitting	7/8"-20 Male
Material Type	Aluminum
Inlet Fitting	3/8" Hose Barb

GENERAL
Sold in Quantity	Each
Notes	617-4018 is the aluminum replacement washer. 427-26102 for nylon.
Color	Blue/Red

Ratings & Reviews

3.4

14 Reviews

Overall Assessment

Many customers praised the product's fit and design, mentioning that installation was simple, it adjusted well and worked as expected. A few noted its compatibility with specific models such as a 4150 Holley Carb and a 66 Mustang. However, numerous negative reviews referenced issues with leakage due to poor construction, particularly in relation to the fittings. The fittings were cited as falling apart or failing to tighten properly. Some customers commented on the use of plastic washers and pins pulling through the housing as points of weakness. A few customers resorted to fixing issues themselves, such as adding a shoulder to the fitting for the gasket to seat on or grinding down a hex nut. Despite these issues, several customers still recommend the product.

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3.4

14 reviews

Most Liked Positive Review

4.0

Duel Feed fuel log

This fuel log is very good. Great color. Fits Great. Works like it should. The only problem is I had to grind down the second hex nut of the fuel bowl extension because it got caught on the fuel bowl screw and prohibited it from tightening down enough seal. After I ground the nut down it sealed perfect and works just like it should.

Most Liked Negative Review

2.0

Cheap, you get what you pay for

I have actually purchased two of these now, biggest complaint is the fitting that threads into the carburetor does not have a shoulder for the gasket to seat on, causing the gasket to "squish" out if extreme care is not taken while installing. I just took the pieces to the lathe and added a shoulder. I also ditch the cheasy nipple for fuel line attachment and install an AN fitting. The most recent fuel log I have purchased has some pretty small passages, it could stand to be bored out for better flow.

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Sort Reviews

Great product

5.0

2 years ago

Breezy

Sparta wi

Verified

Used for my race car works good

Would Recommend

Would not recommend

1.0

4 years ago

Brad Stoner

Tyler wv

I received the log and pretty fast. I waited a couple of weeks before I decided to put it on. I screwed it into my carb and the press in part of the lines just fell out. I figured no big deal better now than on the road. I put them back in and sealed them up. Bolted it back on the carb and tried to start it and that's where all the trouble really started. It was pouring fuel out of every possible place it could. I snuggled it up some more and it just got worse. Pulled it off again and the pins that hold the nuts for the an fittings pulled through the housing. Off all the logs I've used. I've never seen one that did the. Just straight up poor quality.

Would Not Recommend

I would not buy again

2.0

8 years ago

Nathan

Verified

Did not like plastic washers. O rings leaked after installed had to buy a different style

Would Not Recommend

I would buy this again

5.0

8 years ago

Manalynn

Verified

Great

Do not recommend this product!

1.0

8 years ago

Barry

Savannah Georgia

Verified

While installing this product on my carburator it fell apart at the fittings. I'm glad it happened then instead of when I was running the car! It would have been a big fire with 112 race fuel

Would Not Recommend

Cheap, you get what you pay for

2.0

9 years ago

Mel4x4

Waseca, MN

Verified

Would Recommend

Fuel log poorly constructed

1.0

9 years ago

Aslc

Iowa city ia

Verified

Fuel fitting won't tighten to fuel log fitting. Snap washer used to keep fitting on is disfigured. Sprayed fuel all over on first startup.

Would Not Recommend

great buy

5.0

9 years ago

Dabid

Rapid City SD

Verified

66 Mustang

Would Recommend

fits like a glove

5.0

10 years ago

hank

daytona beach fl

Verified

Anybody can install it in minutes

Would Recommend

Nice product

5.0

10 years ago

Richard

Chouteau, Ok

Verified

Well built,and hooked up great.

Would Recommend

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Showing 10 of 14 reviews

Questions & Answers

7 Questions • 9 Answers

Sort Questions

Can I get 1/2" hose barb instead of the 3/8?

by Me

• 8 years ago

1 answer

View Answer

how insulated from heat is this. Tubes seem very large for a 3/8 feed. Is it double lined or just large open tube? It will be almost touching my Torquer manifold that gets really hot.

by ryan

• 8 years ago

1 answer

View Answer

Im wanting to run steel braided hoses and -8an fittings on my rail and im having a hard time finding an addapter fitting for the fuel inlet. Do you know what size the inlet is? Or better yet can you give a part number that would work?

by Dano

• 8 years ago

3 answers

View Answers

How far does this fuel log adjust?

by Timj1966

• 11 years ago

1 answer

View Answer

what size of o-rings are used on the ends that go into the center section? I have one of these and it started leaking out one end. I have checked all around at the parts houses and cannot find a correct o-ring. I believe that it is a 1/2 id x 3/4 od. everything that I can find is 1/2 id x 11/16 od and it fits loose and leaks. thanks

by taborkr

• 12 years ago

1 answer

View Answer

Does this have a plug for a return line on the outlet side?

by racinrick

• 13 years ago

1 answer

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What is the thread size on the inside of the hose barb inlet? AN or standard thread size?

• 15 years ago

1 answer

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7 of 7 questions shown