[Sammy]

That was for sizing a serp belt. Look for a late model 350 in the yard take everything including the upper and lower rad house and thermo housing, PS pump, water pump, Crank pulley, alternator, fan too if your not going electric and every piece of hardware. Get all of it. bring metric tools some of the stuff can be metric. Jot down the info for year/engine to prevent the belt search deliema above.

mid 90's P/U or suburban is a good prospect