Definitely needs an instruction sheet. How many times have you purchased something only to question what the manufacturer wanted because no literature was included? Some items to include on an instruction sheet would include:
Head gasket recommendation.
Torque specs and tightening sequence.
Spark plug recommendation with the heat range.
Pushrod length if different than stock.
Head bolt recommendation with part numbers.
Any warnings – ie. “DO NOT USE ORIGINAL EQUIPMENT HEAD BOLTS!!!”, “USE ANTI-SEIZE ON SPARK PLUG THREADS BEFORE INSTALLING”, etc.
Feel free to make corrections or additions. This is just a start.
Lorena, Texas (South of Waco)