SKU: 27317590799

Holley LS3/L92 Dual Plane Mid Rise Intake Manifold (HO300-129)

$463.05 $514.50
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Holley LS3/L92 Dual Plane Mid Rise Intake Manifold (HO300-129)HO300 129 LS3 INTAKE MANIFOLD 4B CARB Suit Single 4150 4160 Carburettors Part Number: HO300 129 Got an LS engine to get running? Nothing is easier than bolting on a carburetor. Holley's dual plane carbureted intake for GM's LS engines will help you get on the streets quick! Its dual plane design makes it perfect for low end torque, yet it still pulls all the way to 6,500 RPM! Our Oring cylinder head mounting flange gaskets provide an OEM style seal

HO300-129 - LS3 INTAKE MANIFOLD 4B/CARB

Suit Single 4150/4160 Carburettors

Part Number: HO300-129

Got an LS engine to get running? Nothing is easier than bolting on a carburetor. Holley's dual plane carbureted intake for GM's LS engines will help you get on the streets quick!
Its dual plane design makes it perfect for low end torque, yet it still pulls all the way to 6,500 RPM! Our O–ring cylinder head mounting flange gaskets provide an OEM style seal and make installation a snap. Bolt one on today!
Features:
1500-6500 RPM power band
4150 square bore carb mounting flange
Optimized runner layout and constant cross sectional area provide a broad torque curve
Minimum carb flange height means it fits in vehicles with minimal or no hood modifications
Great for carbureted or throttle body EFI street applications
Cast aluminum construction and efficient casting design for light weight, consistent wall thicknesses and improved casting quality
Weighs 14.56 lbs.
Height (front) - 5.07" from front lifter valley cover to carb mounting flange
Height (rear) - 6.14" from rear lifter valley cover to carb mounting flange
Port size - 2.454" height x 1.09" wide
Mounting flange gasket type - O-ring
Includes Viton® O-rings - Viton® is a registered trademark of DuPont Performance Elastomers

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27317590799

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4.7 ★★★★★
Based on 11 reviews
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F
Verified Purchase
Fred C
Alexandria, US
★★★★★ 5
I use it on every fill up keeps the motor running smooth
Size: 16 Fl Oz (Pack of 1), Style: Individual
Best stuff on the market and fast delivery
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Does what it says
Size: 16 Fl Oz (Pack of 1), Style: Individual
Have a JD 280 and it was not running well at all. Surging, not running good overall, where as previously it was. I used this and after a few hours of running, it cleared up very well and runs like a "Deere" now. Product line is still, one of the best out there. Bought again for my chain saw and use it in my weed wacker too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 7, 2025
M
Verified Purchase
M. Chulick
Houston, US
★★★★★ 4
Delivered quickly
Size: 16 Fl Oz (Pack of 1), Style: Individual
Just trying to keep my small engines running with this awful California fuel
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
C
Verified Purchase
christy
Massapequa, US
★★★★★ 5
It works!!!!
Size: 2 fl oz
This stuff works!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
D
Verified Purchase
Dave Wright
Los Angeles, US
★★★★★ 5
STA-BIL Start Your Engines! Because Sometimes Engines Need a Pep Talk
Size: 2 fl oz
So, STA-BIL Start Your Engines! is basically that friend who shows up uninvited but actually saves the day. You know, the one who doesn’t ask questions and just gets your engine running when it’s feeling moody or sluggish. Does it work? Of course it does. Like, “put a little in your gas tank, say a quick prayer, and voila!” kind of work. Suddenly your car remembers how to start, and you feel like a mechanic genius without actually lifting a wrench. It’s simple, it’s reliable, and it doesn’t judge you for letting your gas sit around until it gets that “I don’t want to cooperate” attitude. Pros: Makes your engine start like it just had an espresso shot. Easy to use — even if you’re barely awake in the morning. No weird smells or smoke signals, just clean, smooth starting. Cons: Won’t fix your “I forgot to put gas in” problem. Sadly, can’t make your car drive itself to work (yet). You might start relying on it a little too much — hey, no judgment. Final Verdict: ⭐️⭐️⭐️⭐️⭐️ – 5 stars. If your engine is feeling lazy, this stuff just works. It’s like a pep talk in a bottle for your car. Highly recommended for anyone who’s ever cursed their ignition.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025

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