8*1.25 Intake Manifold Bolt For 3/8" Flanges Chevy Gen III/LS w/4.8 5.3 6.0 6.2L
8*1.25 Intake Manifold Bolt For 3/8" Flanges Chevy Gen III/LS w/4.8 5.3 6.0 6.2L
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Intake Manifold Bolt for Chevy Gen III/LS Engines
This intake manifold bolt features an M8 x 1.25 thread and fits 3/8" flanges on Chevy Gen III/LS V8 engines, including 4.8L, 5.3L, 6.0L, and 6.2L displacements.
Overview
The intake manifold bolt secures your intake manifold to the cylinder heads on Chevy Gen III and LS V8 engines. Its M8 x 1.25 thread and 3/8" flange specification match factory torque and clamp loads, preventing vacuum leaks. DIY engine builders and professional techs alike use this intake manifold bolt for reliable sealing during assembly or reseal jobs.
Built For Performance
- M8 x 1.25 fine thread provides consistent clamping force
- 3/8" under-head length fits stock Gen III/LS intake flanges
- Zinc-plated alloy steel resists corrosion and galling
- Heat-treated for strength under repeated torque cycles
- Replaces stripped or corroded original bolts
- Compatible with carbureted and fuel-injected LS builds
Fits These Machines
- for Chevy 4.8L LR4 engine
- for Chevy 5.3L LM7, L33, L59 engines
- for Chevy 6.0L LQ4, LQ9 engines
- for Chevy 6.2L L92, L9H, LS3 engines
On-The-Job Use
- Installing or resealing an LS intake manifold during a gasket change
- Engine teardown and rebuild projects
- LS swap conversions for classic cars and trucks
- Performance upgrades requiring frequent manifold removal
- Preventing vacuum leaks that cause rough idle and poor fuel economy
Specs At A Glance
| Thread Size | M8 x 1.25 |
| Flange Thickness | 3/8" |
| Material | Alloy steel with zinc plating |
| Engine Compatibility | Chevy Gen III/LS V8 |
Good To Know
Q: Will this bolt fit all Gen III/LS intake manifolds? A: It is designed for factory and aftermarket manifolds that use a 3/8" flange thickness and M8 x 1.25 threaded holes, which covers the majority of LS intake designs.
Q: How many bolts are required for a complete intake installation? A: Most LS intake manifolds use 10 bolts; this listing is for one bolt, so order the quantity you need separately.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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