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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Ultra XP Aluminum Fuel Bowl Kit - Hard Core Gray - 134-78HBOverview: Ultra XP Aluminum Fuel Bowl Kit. Fits models 4150, 4160 & 4500. (Will require a . 250" longer fuel line). Black anodized finish Features: Bowls use standard traditional floats, float hangers, screws, accelerator diaphragms, etc. Features Clear Pyrex sight windows on both sides of bowl Fuel trough designed in floor of bowl to route fuel directly to jets & assists to keep jets covered Internal baffling cast into bowl 20% more fuel capacity vs.
Overview:
Ultra XP Aluminum Fuel Bowl Kit. Fits models 4150, 4160 & 4500. (Will require a .250" longer fuel line). Black anodized finish
Features:
- Bowls use standard/traditional floats, float hangers, screws, accelerator diaphragms, etc.
- Features “Clear Pyrex” sight windows on both sides of bowl
- Fuel “trough” designed in floor of bowl to route fuel directly to jets & assists to keep jets covered
- Internal baffling cast into bowl
- 20% more fuel capacity vs. traditional V-Bowls, eliminates fuel starvation & provides consistent air/fuel ratios
- Fuel shelf to greatly minimize fuel aeration & promote more consistent metering
- A threaded drain plug has been incorporated into the bowl
- Bowls offer contoured fuel entry for smooth fuel flow directly to needle & seat assembly
- Bowls can be plumbed from either side
- Material added to key areas (needle & seat, fuel inlets, sight window) for added strength in demanding race environments
- Fuel bowl has 1/4 -16 fuel inlet threads (uses -8 Viton O-ring type fittings) Will not accept standard steel fittings
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley |
|---|---|
| Emission Code | 5 |
| Finish | Hard Core Gray |
| Fuel Bowl Style | Center Hung |
| Material | Aluminum |
| Model | 4150/4500 |
| Product Type | Replacement Fuel Bowl Kit |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 580 reviews
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Product Reviews
★★★★★ 3
Soap for skin irritations
Mild. No irritation to my psoriasis
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Reviewed in the United States on June 21, 2025
★★★★★ 5
Fantastic soap for the dermatitis and eczema prone
You guyyyyysss, my hands have no dry, itchy spots right now. None. This is remarkable because before now I have for years had issues with eczema/contact dermatitis patches that have at times (aka: most times) been pretty unbearable. To say that I’m overjoyed to have found a natural soap that truly works for me is an understatement. When you use this, you can feel that it’s moisturizing your skin. It’s fantastic. If you haven’t tried it, do yourself a favor and get yourself a bar. I’m wondering now if I can use it on my entire body and to wash my hair. That’s probably a little overboard, but it’s that good and now that I’ve used it I suspect all my skin problems are contact dermatitis that could be solved by the right soap/shampoo.
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Reviewed in the United States on June 30, 2022
★★★★★ 5
It works
It works great
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Best I’ve found yet for facial psoriasis
Anyone who has facial psoriasis will tell you there are not a lot of products that you can put on your face without irritation or flareups. This soap is just what I needed. There are no irritating chemicals or perfumes in this soap. I have read other reviews that the soap does not last very long but there is a way to use it to make it last. First, I wet my face and then I wet my fingertips and rub my finger tips across the dry bar of soap and then lightly rub my face with my fingertips softening the plaques and then lightly wash with a soft cotton washcloth. It is not really moisturizing but not over drying either. I follow up with an organic vegetable-based glycerin oil to moisturize. This is the best product I have found yet.
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Reviewed in the United States on June 2, 2020
★★★★★ 5
Heals skin
It definitely dries out your skin quickly but I do recommend moisture so the skin won’t crack or you get open cuts as your dermatitis is healing. I have dermatitis really bad where my skin drys and hurts when I have a cut, So far it’s working as intended.
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Reviewed in the United States on April 11, 2026