Mud in my Veins
Join Date: Dec 2000
Location: Memphis, TN
Thanked 0 Times in 0 Posts
Re: 84 300 Project
Congrats on joining the few, the proud, the underpowered!-)
A quick way to tell if your truck originally came with a 300 is the 8th digit of the VIN: Y means 300ci/4.9L I6; C, 3, or 4 means 232/3.8 V6; M, E, or F means 302/5.0 V8; and G means 351/5.8 V8.
I don't specifically remember, but I think the block serial number is at the back of the head mounting surface facing up between the head and the firewall. Good luck on getting back there to see it!
From experience, I can tell you your carb problems will never go away. It's partly because of the carb, partly because of the 2-bolt mounting, and mostly because of the loooooooong, unequal intake manifold runners.
83 Custom w/95 4.9L EFI, 78 NP435, 83 NP208, 83 D44IFS 3.07, 87 Ford 8.8ABS 3.08, Michelin LTX AT 31x10.50R15