Sbc Leaking Intake Manifold. This at least mitigated some of the common oil leak issues. W
This at least mitigated some of the common oil leak issues. What are my options for resolving this problem? Will it Apr 2, 2019 · Someone shoot me! Intake Manifold STILL leaking coolant. Although leakage at the On the Chevrolet (GM) 3. Brand Information At Speedmaster Outlet™, we specialize in offering high-quality products that range from open box to used conditions. Stop leaks like vacuum, coolant and oil. Designed, cast, and machined in the USA, it’s one of the few All-American aluminum intakes on the market! Can I use felpro manifold gaskets with my headman shorty headers on my 5. I originally had the intake sealed up tight but the lifters were defective so I had to pull it apart and reseal it. 20 hours ago · 6. I had the engine out and the intake off this spring, I sealed the intake bolts with liquid teflon thread sealant as I always have. I kinda just rub it into the gasket,so thin it almost doesn't even squish out when tight,needs very little. It looks like it's from the rear valley gasket of intake manifold. It's a 383 sbc with aluminum heads. 4L and 3. Then, in 1986, Chevy converted to roller cams which meant a change to a one-piece rear main seal. best thing to do would be remove the manifold, use some good RTV black and put a bead around each coolant passage and bolts that are near a coolant passage. The factory gaskets often degraded due to the [Dex-Cool] coolant used by General Motors. For the purpose of this article, we’ll concentrate on the two-piece rear main seal. Free instant access! Why oil is in the intake manifold and how to fix it. In this video I show a less common find of a cracked lower intake manifold on a 1997 Chevy Silverdo truck with a 5. sealing the threads wont do much if its comming btween the gasket and manifold. Recognizing intake manifold leak symptoms early can save you thousands in repairs and prevent unexpected breakdowns. 8L V6 engines from this era are notorious for intake manifold gasket leaks. 7 vortec? I cant get any header gaskets for it locally, this is all I could find and ive read that some people have had luck The intake manifold gasket may develop and external engine oil or coolant leak. I have tried two intakes and 6 different gaskets. Designed to optimize airflow for Small Block Chevy (SBC) 350/400 engines, this single-plane intake manifold enhances performance by distributing air evenly across the cylinders for improved power delivery. Dec 2, 2006 · I have an oil leak at rear of enginge (sbc 350). Thanks. I re sealed the intake again and now it leaks in the same area. leaks at the rear of the manifold In this video, you will learn about 6 bad intake manifold gasket symptoms. What are my options for resolving this problem? Will it Jun 10, 2025 · This guide will walk you through how to fix an intake manifold leak effectively. Also,if I recall,a few of the intake bolt holes in the head aren't blind and exposed to the lifter valley. 1-liter engine, intake manifold gaskets can fail and damage the cylinder heads. 7L Vortec engine. It's a combination of so-so gaskets used by GM and the wonderful Dex-Cool coolant GM has forced upon us. Jun 8, 2012 · Intake manifold gasket issues are a common problem on these engines. I have the intake off again and when I bolt it to one side and use May 27, 2022 · All I did was transfer the top half over to my new 350 short block. . sounds like it is missing. This is on the left-hand side where the intake manifold bolts to the head (there's coolant on the manifold). 4 starts losing oil Oil cooler leaks buried under the turbo The block-mounted oil cooler on the 1. Our mission is to provide exceptional value and transparency, ensuring you fully understand the condition of each item before making your purchase. Therefore, the intake manifold plays an important part in the performance of your car engine. Spot and fix gasket leaks early by learning the key symptoms of an intake manifold leak, what caused it, and how much it’ll cost to fix. Replacing the intake manifold gasket should correct these leaks. Sep 3, 2025 · But when the intake manifold gasket leaks, that vital circulation is disrupted. Below is a detailed guide to our item condition categories, designed to help you find the best fit for your Jul 27, 2021 · The traditional small-block from 1955 through 1986 used a two-piece rear main seal. This could be anywhere, port, valve seat (more likely). Nov 18, 2025 · Your engine's intake manifold is the crucial pathway that delivers air to your cylinders for combustion. I was going to try and tackle this project tomorrow. Leaking intake manifold gasket (s) at the water transfer. This is the second time replacing them and they still leak form the top. In this Aug 25, 2013 · 400 sbc intake manifold or head gasket leaking? Engine & Drivetrain Nov 17, 2008 · 350 chevy small block just finished being rebuilt but after driving it for a week noticed there is oil sitting on top of the manifold.