Its a stroker build with a 75 model 360 block and 340 accessories except for new oil pan. The ARP kit that I got was so messed up I had to return it to Summit. The accessory bolts are what I was trying to verify. I found the information below, I think it was a link on the A-body forum.
threads length qty
Alternator Bracket
Coil
Distributor 5/16-18 . 3/4 1
Fuel Pump to Block 3/8-16 . 1 1/2 2
Intake Manifold Bolt 3/8-16 . 1 1/2 12
Oil Pan Bolt 5/16-18 . 3/4 18
Thermostat 3/8-16 . 1 2
Timing Cover 3/8-16 . 1 3
Timing Cover 3/8-16 . 2 3/4 1
Valve Cover 1/4-20 . 3/4 10
Water Pump to Block 3/8-16 . 5 4
Water Pump to Timing Cover3/8-16 . 2 1/2 2
Water Pump to Timing Cover3/8-16 . 2 1