You gotta see this ......

Maybe these can handle it..............

Fits: 273/318/340/360

These heavy-duty rocker arms from Mancini Racing are quality replacements for your factory originals. They feature thicker cross-sections in the pushrod socket. Left and right refer to rocker offset, not to the sides of the engine or cylinder head.

Includes 16 heavy duty hyraulic rocker arms

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Mancini Racing Steel Rocker Arm Set, 1.5 Ratio