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Description
Holley Hi-Ram EFI Intake Manifold Kit - Big Block Chevy 300-963Hi Ram intake manifold with 105mm LS GenIV type throttle body flange type plenum top. A 10AN fuel rail kit is included. Holley Hi Ram EFI intake manifolds are now available for 1965 & later 396 502+ MKIV MKVI Big Block Chevy engines with standard intake flange rectangle port cylinder heads. Traditional Big Block Chevy engines can now also be fitted with the Holley Brand Hi Ram type EFI intake manifolds that have so well served GM LS & LT, Gen 3 Hemi,
Hi-Ram intake manifold with 105mm LS GenIV type throttle body flange type plenum top. A -10AN fuel rail kit is included.
Holley Hi-Ram EFI intake manifolds are now available for 1965 & later 396-502+ MKIV-MKVI Big Block Chevy engines with standard intake flange rectangle-port cylinder heads. Traditional Big Block Chevy engines can now also be fitted with the Holley Brand Hi-Ram type EFI intake manifolds that have so well served GM LS & LT, Gen 3 Hemi, SBF Ford, and Ford Coyote engine platforms. The iconic Chevy SBC & BBC platforms are primed for 21st century induction systems, Holley EFI engine management, and Holley fuel systems.
Features:
- The Big Block Chevy Hi-Ram manifold is available in either a traditional Hi-Ram 105mm plenum top or with a 2 x 4150 4-barrel throttle body plenum top options
- Hi-Ram intake manifolds are a cost-effective alternative to fabricated sheet-metal or billet manifolds for high-performance applications where induction system height is not limited
- 300-961, 300-963, and 300-964 are designed for 1965 & later 396-502+ MKIV-MKVI standard 9.80? deck height Big Block Chevy engines with standard intake flange rectangle-port cylinder heads.
- Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies
- MAP sensor port is for a GM Gen IV LS MAP sensor, manifold also has provisions for (1) 1/8 NPT, (1) 1/4 NPT, (1) 3/8 NPT fittings to the plenum
- The coolant outlet is a standard Chevy thermostat housing flange. and (2) 1/2 NPT and (1) 3/8 NPT coolant ports are provided.
- Power Band: 1500-8000 RPM
- Black anodized EFI fuel rails are machined for -10AN O-ring fittings and come included with these EFI Hi-Ram kits.
- Plenum Top Gasket Type ? 3/32? Round O-ring Cord
- Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
- Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
- 2.40? tall x 1.60? wide port flange openings, uses Mr. Gasket intake manifold gasket #5817
- Throttle Cable Bracket is supplied in the kit
Specs:
| Basic Operating RPM Range | 1500-8000 |
|---|---|
| Brand | Holley |
| Carburetor Studs Included | No |
| Category | Intake Manifolds |
| Color | Natural |
| Construction | Cast |
| Cylinder Head Port Shape | Rectangle |
| EGR Port | No |
| Emission Code | 3 |
| Engine | Chevy Big Block V8 |
| Finish | Natural Cast |
| Fuel Injectors Included | No |
| Fuel Rail(s) Included | Yes |
| Fuel System Type | EFI |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Hi-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Natural |
| Product Type | Intake Manifold |
| Removable Runners | No |
| Removable Top/Lid | Yes |
| RPM Power Band | 1500-8000 |
| Single Or Dual Plane Type | Single Plane |
| Throttle Body Bore Diameter | 105 |
| Throttle Body Included | No |
| Throttle Bore | 105 |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
Shipping Notes
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Exchange/Return Notes
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4.6 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 4
Easy and it works
Color: Silver, Size: Compact
It works! It doesn’t have different speed settings, and you have to make sure you have the right kind of milk, but so far it’s been great and easy to use.
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Simple upgrade that actually feels worth it
Color: Black, Size: normal
I replaced a cheap milk frother I had from Walmart with this one, and it’s definitely an upgrade. Right out of the box it just feels a bit nicer and more solid, not flimsy like the other one.
It’s also noticeably more powerful. It froths milk really quickly and does what it’s supposed to without any effort. I did notice it only has one ring on the whisk compared to the two on my old one, but I honestly don’t notice any difference in how it works.
Only small thing was getting the batteries in, which was a little tighter than I expected. Not a big deal, just took a second.
Overall, it just works well and feels worth the price. I’ve only had it for a short time, but so far I’m happy with it and hoping it holds up.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Great frother at a good price
Color: Black, Size: normal
Works really well and priced appropriately. Produces rich froth with minimal effort and works MUCH better than other much higher priced frothers. Highly recommended. I hope it lasts a good long time.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Perfect for protein shakes and coffee - one warning about getting it wet
Color: Black, Size: normal
Bought this to replace a similar handheld whisk I had been using for protein shakes and stirring extras into my morning coffee. At this price point I was not expecting much, and it has done exactly what I need - with one warning I will get to.
I use this almost every morning. Two jobs: mixing a scoop of whey protein into water or milk so it actually dissolves (no clumps stuck to the side of the shaker), and stirring pre-workout powder or a flavor additive into my coffee. This is not a blender and I do not treat it like one. For small-volume mixing of powders into liquid, it is the right tool.
WHAT WORKS
- It does not over-froth or whip air into the drink. Some handheld whisks turn a protein shake into a foam mess. This one keeps the liquid liquid - it just dissolves the powder. That is the main reason I came back to this category.
- No splashing, even with the cup near the brim. I can stir a nearly-full coffee mug without flicking liquid onto the counter. The previous one I owned could not do this.
- One button. Runs as long as I hold it. A typical protein shake or coffee mix takes under ten seconds.
- Easy to hand-wash. Rinse the whisk end, wipe the handle, back in the drawer.
WHAT DOES NOT (the warning)
- You cannot throw the whole thing in the sink with the rest of the dishes. The handle is not waterproof. We made this mistake exactly once - it got soaked, never worked again. At this price the loss was not a big deal, but it is the one thing I wish the listing made more obvious. Hand-clean the whisk end only, keep the handle dry.
- Battery-powered. Replace the batteries when it starts feeling slow rather than waiting for it to fully die mid-shake.
WHO IT IS FOR
If you need a small-volume mixer for protein powder, coffee, hot chocolate, pre-workout, or anything where you are dissolving a powder into a single cup or shaker, this is the tool. If you want to blend smoothies or actually break down ingredients, buy a real immersion blender instead.
Five stars. The wet-handle failure was my mistake, not the product's. Doing its job every morning - would buy again.
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Reviewed in the United States on May 24, 2026
★★★★★ 4
$7 value
Color: Black, Size: normal
Works wonderfully if the liquid you’re blending has no viscosity, but it slows down brutally if given any kind of resistance.
It’s small and lightweight and very easy to use.
Works for my bloom, but it does not work very well for my protein shakes.
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Reviewed in the United States on May 28, 2026