A good used engine block, 20hp v twin cylinder , last pic are engine numbers. parts may need cleaned, will also fit, - Briggs and Stratton 401577-0123-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0124-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0125-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0126-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0127-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0128-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0129-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0130-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0131-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0134-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0134-B2 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0135-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0135-B2 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-0887-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-3127-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-3130-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-3887-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-5124-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-5127-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-5129-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-5130-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-5131-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 401577-5887-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0001-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0112-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0112-E1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0113-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0113-E1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0123-B1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head, Rocker Arm Cover, Intake Manifold
- Briggs and Stratton 405577-0123-E1 - Briggs & Stratton Engine, Electric Starter - Cylinder Head