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#425300136
Holley 300-136 Mid-Rise EFI Intake Manifold
- Features an optimized runner layout and constant cross sectional area
- The minimum carb flange height will fit in vehicles with minimum hood modifications
- Has a cast aluminum construction with a natural finish with a weight of just 11.5 lbs
$441.95
/each
Factory Shipped
$491.95
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Product Summary
EFI Fuel System Type, Multi-port Injection Style
- Features an optimized runner layout and constant cross sectional area
- The minimum carb flange height will fit in vehicles with minimum hood modifications
- Has a cast aluminum construction with a natural finish with a weight of just 11.5 lbs
- It is a great manifold for centrifugal blower, turbocharged or NOS power adder applications
- Manifold does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-218
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See rebate detailsKey Specs
| MFG. Part # | 300-136 |
| Brand | Holley |
| Intake Manifold Type | Single Plane |
| RPM Range | 2,500-7,000 |
| Material Type | Aluminum |
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Return PolicyHolley 300-136 Details
Holley 300-136 Details
Single Plane Mid-Rise EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS3/L92 style rectangular port cylinder heads
- This manifold will not work with factory fuel rails and requires the use of Holley Fuel Rail Kit 534-218
- 2500-7000 RPM power band
- 4150 Square bore flange
- Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
- Minimum carb flange height - fit in vehicles with minimum hood modifications
- Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS mild power adder applications
- Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality
- Weight - 11.5 lbs.
- Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange and bellhousing flange
- Port size - 2.50" height x 1.15" wide
- Includes Viton® O-ring intake to cylinder head gaskets - Viton® is a registered trademark of DuPont Performance Elastomers
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Holley Fuel Up Spring Savings Event 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley Fuel Up Spring Savings Event 2026. Instant rebate period runs from March 30, 2026 through April 19, 2026.
Guides & Documents
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Holley 300-136 Specifications
Holley 300-136 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 300-136 |
| Brand | Holley |
| Intake Manifold Type | Single Plane |
| RPM Range | 2,500-7,000 |
| Material Type | Aluminum |
| GENERAL | |
| Fuel System Type | EFI |
| Injection Style | Multi-port |
| Finish | Natural |
| EGR | No |
| Cylinder Head Configuration | Rectangular Port |
| Intake Section Included | Complete |
| Plenum Material | Aluminum |
| Plenum Finish | Natural |
| Throttle Body Included | No |
| Injectors Included | No |
| Aftermarket Fuel Rail Required | Yes |
| Fuel Rails Included | Yes |
| Overall Height | 5.42" |
| Runners Included | No |
| Runners Removable | No |
| Supplemental Bosses Cast-In | No |
| Supplemental Bosses Machined | No |
| Emission Code | 3 |
| Sold in Quantity | Each |
| GTIN Code | 090127687741 |
Ratings & Reviews
Ratings & Reviews
Fitment
Fitment
2009-2014 Cadillac CTS
GM LSA
2012 Cadillac Escalade
6.2 Chevy LS V8
2007-2012 Cadillac Escalade ESV
6.2 Chevy LS V8
2007-2012 Cadillac Escalade EXT
6.2 Chevy LS V8
2008 Chevy Tahoe
6.2 Chevy LS V8
2008-2009 Hummer H2
6.2 Chevy LS V8

