4BBL Intake Manifold for Mercruiser Volvo Penta 5.0 5.7 Vortec V8 807289A1 RM4BBL
RM4BBLV8
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4BBL Intake Manifold (Vortec V8)
Premium Replacement for Mercruiser & Volvo Penta | SKU: 807289A1
This high-performance 4-barrel (4BBL) intake manifold is designed specifically for GM-based 5.0L (305cid) and 5.7L (350cid) Vortec V8 marine engines. Constructed from heavy-duty cast iron, this manifold is engineered to withstand the rigorous demands of raw-water or closed-cooling marine environments, providing far superior corrosion resistance compared to standard automotive aluminum alternatives.
Key Features
- ✔ 8-Bolt Mounting: Specifically for 1996-Up Vortec heads.
- ✔ Dual Carb Flange: Accepts Square Bore and Spread Bore carbs.
- ✔ Marine Grade: Cast iron construction for salt/freshwater durability.
- ✔ Versatile: Compatible with Holley, Edelbrock, and Quadrajet.
Technical Specs
| Material | Cast Iron |
| Bolt Pattern | 8-Bolt (Vortec) |
| Carburetor Style | 4-Barrel (4BBL) |
| Engine Disp. | 5.0L / 5.7L / 6.2L |
| Weight | ~23 lbs (10.4 kg) |
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Mercruiser | 5.0L / 5.7L / 6.2L (1996+) | Fits Alpha & Bravo Vortec engines |
| Volvo Penta | 5.0GL, 5.7GL, 5.7Gi, 5.7GXi | Vortec-style 8-bolt heads only |
| OMC Cobra | 5.0L / 5.7L Vortec | Replacement for late-model V8 |
OEM Cross Reference
| Mercruiser | 807289A1, 807289, 8M2004384 |
| Volvo Penta | 3856270 |
| GM Casting Number | 12552422 |
| Recmar | RM4BBL, RM4BBLV8 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part from Recmar, manufactured to meet or exceed original equipment (OE) standards for marine performance.
How do I know if it is compatible?
If your engine has **8 intake manifold bolts** (4 on each side) and was manufactured after 1996, this is the correct manifold. If you have 12 bolts, you require the "Pre-Vortec" version.
Does this include the installation gaskets?
This listing is for the intake manifold only. We strongly recommend purchasing new Vortec intake gaskets and a marine-grade RTV sealant to ensure a leak-free installation.
Note: Please verify your original part number or bolt count against the references above before purchasing. Technical support is available at 4boats.co.uk if you are unsure of fitment.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
