The International will be driven in town, to the grocery store, hardware store, church and the occasional car show. My goal is simplicity and reliability while also being able to pull hard when the throttle is depressed although I don't plan on taking the truck to the track. I am looking for nice throttle response through low to mid-range operation, no need for it to spin at 4000+ RPM. I have a non-OD transmission right now but plan to move to an AOD down the line. Aiming for 4.10s in the rear axle (Ford Explorer 8.8 with limited slip) and approximately 30" tires. Considering the limited intended usage, running higher octane fuel is no problem.
I've included my intended parts list below (for myself and others' reference) with a handful of questions. I expect that my bottleneck is going to be fuel delivery given the proposed Motorcraft 2150 2-barrel carburetor and/or fuel/air delivery due to the stock camshaft.
Chevy rockers seem like a good way to open up the valves a bit more aggressively but I am having a hard time following the thread that describes applicability, it seems like I need to double-check my engine configuration:
Swapping on a 240 cylinder head sounds like it would be good for a few tenths of a point towards CR:
https://www.ford-trucks.com/forums/1426 ... 300-a.html
What am I missing or skipping over that I should be taking care of while I have the engine partially torn down and moving from one vehicle to another?
- GM 4-Pin HEI
AC Delco D1906
https://www.amazon.com/ACDelco-D1906-Pr ... B0013FZX5S
- I understand that this mount/heat sink is not a direct fit and may have to be modified to allow the ignition module to be installed.
https://www.amazon.com/ACDelco-10474610 ... B0012P2EQU
- GM E-Coil
https://www.autozone.com/ignition-tune- ... 6402_17367
- 1 Grey (2-pin) S563 and 1 black (2-pin) PT1909
https://www.amazon.com/Ignition-Connect ... B01EEMKJL4
- Other than sourcing a mount from a junkyard, does anyone have a single-hole mounting coil bracket for the GM e-coil?
- Motorcraft Copper SP-420-A
Gapped at 0.055"
https://www.autozone.com/external-engin ... 49465_3157
- Duralast D801216
https://www.autozone.com/ignition-tune- ... 6/456405_0
- Stock engine pump.
Are there differences in the mechanical engine-driven pumps based on the year or options? If so, is there a particularly desirable pump?
- Motorcraft 2150
https://www.ebay.com/itm/2-Barrel-2150- ... 6e7ddda89e
Given the intended application, I expect that the 1.21" venturi would be the best fit but the 1.08" may work as well. Thoughts?
I understand that one of the major differences between the Motorcraft 2100 and 2150 is the two stage power valve. How critical is this given the intended application?
- Mr. Gasket 1933
4 Barrel square to 2 barrel.
https://www.amazon.com/Mr-Gasket-2-Barr ... B00068OS2W
- Offenhauser C-Series 6227C
From the description, the "Dual Port" manifold may be a better fit but I am not confident in its compatibility with a 2 barrel carburetor on top of the adapter. Thoughts?
- Raso Enterprises KIT0008
http://autoparts.rasoenterprises.com/in ... rd-240-300
I understand a few threads have reviewed the "compatibility" between the Offenhauser intakes and the water heating kits and the general concensus seems to be "use at your own risk but no one has actually seen any resulting damage" - is this still the case?
- Ford 4.9 EFI Exhaust Manifolds
I understand that the EFI manifolds have a bit more open area than the manifolds equipped on the pre-EFI engines but have also heard that they benefit substantially from some cleaning up on the inside of the casting - how critical is polishing the inside of these manifolds?