Only 90K on my 4.6L '03 but am thinking of what I will do when the engine starts to tire. As I see it, there are two options:
1. Rebuild and upgrade
2. Replace OEM engine with crate motor.
I am inclined to go with #1 as I am not sure if there is a crate motor that is a direct "bolt in" compatible with the OEM computer, transmission, etc.
The down time associated with #1 is an issue. So, I am thinking I buy a "used" short block and recondition. I do want to increase TQ/HP and I have read that the '03 cranks are soft so a crank upgrade would be in order. Cleanup over bore, new rings, some mild torque cams, etc. and the short block is done.
Some minor port work on the heads, milling for a compression bump, triple angle valve job, new guide seals, etc. and the heads are done.
Remove the OEM engine, strip off the intake, exhaust, timing cover, etc. and install on the reconditioned engine and drop it in. Hook up and start.
Would like to hear from anyone that has or is planning and engine swap with some mild performance upgrades.
1. Rebuild and upgrade
2. Replace OEM engine with crate motor.
I am inclined to go with #1 as I am not sure if there is a crate motor that is a direct "bolt in" compatible with the OEM computer, transmission, etc.
The down time associated with #1 is an issue. So, I am thinking I buy a "used" short block and recondition. I do want to increase TQ/HP and I have read that the '03 cranks are soft so a crank upgrade would be in order. Cleanup over bore, new rings, some mild torque cams, etc. and the short block is done.
Some minor port work on the heads, milling for a compression bump, triple angle valve job, new guide seals, etc. and the heads are done.
Remove the OEM engine, strip off the intake, exhaust, timing cover, etc. and install on the reconditioned engine and drop it in. Hook up and start.
Would like to hear from anyone that has or is planning and engine swap with some mild performance upgrades.
