BluePrint LS3/L92 Fabricated Intake Manifold – 102mm – Black
BPP822112
The BluePrint LS3/L92 Fabricated Intake Manifold – 102mm is a low-profile performance EFI intake designed for GM Gen III/IV LS engines using LS3, L92, L76, and L99 rectangular-port cylinder heads. Manufactured by BluePrint Engines, the manifold is fabricated from 3mm T6061 sheet aluminum and fully TIG welded, making it a strong choice for naturally aspirated, turbocharged, and supercharged LS combinations that need increased airflow and a compact overall height.
Shortened runners and a widened plenum are designed to maintain airflow volume while increasing air velocity through the 4,000-8,000 RPM range. The manifold sits approximately 1.875" lower than a typical high-rise fabricated intake, helping with hood clearance in tight engine bays. A 102mm throttle body opening, high-flow fuel rails, -8AN fittings, braided crossover line, MAP sensor provision, and included seals and hardware make this a well-equipped foundation for a performance LS induction system.
Includes:
- (1) BluePrint Fabricated Aluminum LS Intake Manifold
- High-Flow Fuel Rails
- -8AN Fuel Rail Fittings
- Braided Fuel Rail Crossover Line
- Intake Port O-Ring Gaskets
- Throttle Body O-Ring
- Throttle Body Mounting Bolts
- Required Installation Hardware
Note: Throttle body and fuel injectors are not included.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | BluePrint Engines |
| Part Number / SKU | BPP822112 |
| Product Type | Fabricated EFI Intake Manifold |
| Engine Family | GM Gen III / IV LS |
| Cylinder Head Application | LS3 / L92 / L76 / L99 |
| Intake Port Style | Rectangle Port |
| Throttle Body Bore | 102mm |
| Material | T6061 Sheet Aluminum |
| Material Thickness | 3mm / Approx. 1/8" |
| Construction | Fabricated / 100% TIG Welded |
| Finish | Black Anodized |
| Operating RPM Range | 4,000-8,000 RPM |
| Fuel Injection Type | Multi-Port EFI |
| Fuel Rails Included | Yes |
| Fuel Rail Fittings | -8AN |
| Fuel Rail Crossover | Braided Line Included |
| Fuel Injectors Included | No |
| MAP Sensor Provision | Yes – Rear of Plenum |
| Throttle Body O-Ring | Included |
| Intake Port O-Rings | Included |
| Throttle Body Hardware | Included |
| Recommended Use | High-Performance Naturally Aspirated / Forced Induction |
Fitment
Designed for compatible GM Gen III / IV LS engines using LS3, L92, L76, or L99 rectangular-port cylinder heads.
| Cylinder Head / Engine Family | Port Style |
|---|---|
| LS3 | Rectangle Port |
| L92 | Rectangle Port |
| L76 | Rectangle Port |
| L99 | Rectangle Port |
Fitment Notes
- Fitment is determined primarily by cylinder head port style, not engine displacement alone.
- Requires compatible LS3/L92-style rectangular-port cylinder heads.
- Designed around a 102mm throttle body.
- The low-profile design is approximately 1.875" shorter than typical high-rise fabricated manifolds, helping improve hood clearance.
- Common applications include performance Corvettes, Camaros, Firebirds, GTOs, LS-swapped vehicles, race cars, and custom off-road builds.
- Verify throttle body, injector height, fuel system plumbing, hood clearance, and accessory clearance before installation.
Tech Insight
1. What is the advantage of a fabricated sheet aluminum LS intake?
A fabricated intake allows the plenum and runner design to be optimized for high airflow while providing strong construction for performance applications. The TIG-welded aluminum construction also makes this manifold well suited to boosted combinations where intake pressure can be significantly higher than a naturally aspirated engine.
2. What is the benefit of the low-profile design?
The manifold is approximately 1.875" shorter than a typical high-rise fabricated intake, making it easier to package under factory or modified hoods without giving up the large plenum and short-runner design used for higher-RPM performance.
3. What cylinder heads will this intake fit?
This manifold is designed for LS3, L92, L76, and L99 rectangular-port cylinder heads. It is not intended for cathedral-port LS heads unless an appropriate cylinder head or intake configuration change is made.
4. Is this intake good for turbo or supercharged LS engines?
Yes. The 3mm T6061 aluminum construction and fully TIG-welded design make it well suited to turbocharged and supercharged applications, while the short runners and large plenum are aimed at higher-RPM airflow.
5. What size throttle body does this intake use?
The manifold is designed around a 102mm throttle body, making it a natural match for performance LS combinations that need more airflow than smaller factory-style throttle bodies provide.
