I am in need of 1 head bolt for an F1.5 engine. This would be for engines manufactured between 9/73 and 1/75 per the Toyota parts diagram. Realistically it will be from a '73-'74 year model truck. The bolts in engines before and after this time frame are 122mm long measured from the bottom of the head to end of the threads. The bolt that I need is M13x1.75 145mm long.