Former Wrench
Senior Member
It has been awhile but I am fairly positive 1.460 is for regular timing, non turbo. I don't have my manuals anymore, but in the day I have rebuilt 3-400 of them Worked for a DDA distributor so I have changed a lot of engines from standard to A timing along with spending 6 months in the dyno room doing run-ins and tune ups.
Depending on which of the eight engine configurations, a lucky guess would be to pull the rear cam cover on the right side and roll the engine (1 1/2 in socket) until you see the cam timing marks line up. With luck you will be able, maybe a mirror on a pole, see the timing mark on the idler gear. An A timed engine is stamped with an A and is one tooth next to the standard timing mark
I once spent weeks retiming 60 new Carlo Rossi Winery Freightliners from standard to A timing and installing bigger injectors (12V71).
Depending on which of the eight engine configurations, a lucky guess would be to pull the rear cam cover on the right side and roll the engine (1 1/2 in socket) until you see the cam timing marks line up. With luck you will be able, maybe a mirror on a pole, see the timing mark on the idler gear. An A timed engine is stamped with an A and is one tooth next to the standard timing mark
I once spent weeks retiming 60 new Carlo Rossi Winery Freightliners from standard to A timing and installing bigger injectors (12V71).