New 12° Nitrous

HEADS FIT ALL 4.840 STOCK BORE SPACING BLOCKS! The Power to Perform! VIEW 12° NITROUS FLOW CHART

This new cylinder head option is the most advanced technology on the market today for both a nitrous or a big cubic inch engine. This hot new 12° Pro-Filer Nitrous / Big cubic inch cylinder head features special exhaust ports.

* New for 2006 - Our new proprietary nitrous combustion chamber.

New 12° technology for alcohol applications like contempary truck pull engines or top-sportsman engines. We made over 1380 H.P. with our new head on a 648 injected alcohol truck pull engine.

Includes Manley custom titanium valves, new head castings with complete head finished ports, springs, titaniun retainers, locks, spring cups and final assembly.

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