High Performance Dart Pro 1 Marine Heads:

Dart Pro 1 Marine Heads' new highly efficient chamber with improved fuel distribution, spark plugs located as high and close to the center of the chamber as possible, and five angle intake seats to shear the liquid fuel and air as it enters the chamber are the product of wet flow research.

More About Dart Pro 1 Marine Heads:

Features:
- Special hard chromate surface treatment for corrosion and erosion resistance -available on stainless and aluminum Dart blocks!
- Premium alloy: Dart aluminum heads are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.
- Assemblies include super tough inconel exhaust valves for long life.
- Bolt on compatibility: 2 degree rolled valve angle and standard spacing. Accommodates all stock accessories.
- Heart shaped 121cc chambers improve combustion efficiency.
- Raised spark plug location improves flame travel for a quicker, more complete burn, producing more power.
- Multi-angle intake seats and radiused exhaust seats dramatically increase airflow.
- Hardened exhaust seats are compatible with unleaded gasoline.
- Exhaust ports raised .300" to improve flow (requires 1" longer head bolts next to exhaust ports).
- Spark plug holes are machined for gasketed 3/4" reach plugs.
- Manganese bronze valve guides extend cylinder head life and reduce

Dart Machinery, LTD. stands behind each product they manufacture 100%. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible.

 

 
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