This precision casting technologyduplicates the contours that were previously available only in hand-portedcylinder heads.
RECKLESS RACING 525 EFI FOR SALE PRO
Using advanced manufacturing techniques, we cast the PRO 1's ports with incredible accuracy. You get more power for your moneywith PRO 1. Inspired by our championship-winning Pro Stockdesigns, the PRO 1 's race-proven features include rolled valve angles, improvedspark plug location, extra-long intake valves, raised exhaust ports, andfast-burn chambers - yet the PRO 1 can be used with off-the-shelf pistons, valvetrain components, and intake manifolds. PRO1 aluminum big-block cylinder heads deliver "out-of-the-box" airflow that beatsthe competition - at an unbeatable price! Specifically designed forperformance marine engines, PRO 1 heads make Pro Stock airflow technologyaffordable for every big-block owner. These heads are sold as heads w/valves only or completely assemble with inconel exhaust valves & dual valve springs.
All heads have a Dart Marine exclusive chromate finish that provides a superior corrosion resistance extending the life of the heads in a harshest of marine environments. These are available in three upgraded intake runner sizes 310CC, 325CC or 345cc ports. Dart Mercury 525, 600, 700 EFI Aluminum PRO 1 Cylinder Heads - with Valves Only (Pair)ĭart machinery has just introduced the ultimate Mercury Racing replacement aluminum cylinder heads for the Mercury Racing 525, 600, and 700EFI engines.
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