Stef's Fabrication Header Flanges

Stef's Header Adapter Plates

Stef's header adapter plates make it easier to increase header size when you are using stock or aftermarket cylinder heads. The flange plates are CNC-machined from 1/2 thick billet aluminum to save weight and to ease the task of matching the adapter plates to the ports. Special hardware is supplied to attach plates to heads without interfering with the header flange. For the ultimate way to increase the capability of your engine, order and install Stef's header adapter plates. Gaskets not included, sold separately.

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