5.0 to 4.6 swap

[gadget73]

400 is usually considered fairly safe out of a 302, getting beyond that and you get into the questionable area. Over 500 and you're just rolling the dice. A huge amount of it has to do with the tune and how its used though. If the tune isn't right, or the motor is spun up too much, the block will crack open starting at the lifter galley and go straight down to the top of the main bearing journals. Most of this has to do with how much the 302 block flexes under heavy loads, which happens to be why the ones that get wound up real tight on a regular basis tend to pop head gaskets.

A 351 block on the other hand is usually considered safe up to 600-700 hp. They're just that much beefier.

[zoomie]

Oooooh, whats that recipe?? For the 400 hp 302. I was curious about the 4.6 conversion thing, but im a big 302 fan. Would you be willing to share the schematic with me?

AFR 165 heads and 1.7 roller rockers, dougs tri step headers

[82LTDQS]

Thanks guys. All good points. Im sticking with the 302. I will mod that. Now im torm between transmissions. A simple light weight modded C4, but with NO overdrive? A heavy unreliable AOD (with the stupid TV cable), But with overdrive. The pricey electronic version of the AOD with the wide ratio and able to be controled and programed via stans alone system?

[82LTDQS]

Yeah I know, what about a 5 speed manual swap. Too much work for me.

[1990LTD]

Thanks guys. All good points. Im sticking with the 302. I will mod that. Now im torm between transmissions. A simple light weight modded C4, but with NO overdrive? A heavy unreliable AOD (with the stupid TV cable), But with overdrive. The pricey electronic version of the AOD with the wide ratio and able to be controled and programed via stans alone system?

I think the popular choice is running a computer for the EFI and one for the tranny

[gadget73]

The AOD isn't an unreliable transmission if you have one rebuilt by someone who knows what they are doing. The problem seems to be in finding someone that knows what they are doing with one. Most factory AOD failures are that stupid plastic bushing, which was quite frankly a horrible idea. Add to that poor rebuilds, and you get a reputation as an unreliable POS. The cable is mildly annoying, but its really not much worse than a kickdown linkage.

[82LTDQS]

Whats the name of the electronic version of the AOD? Not the AODE. It came after with a wide gear ratio.

[1990LTD]

Whats the name of the electronic version of the AOD? Not the AODE. It came after with a wide gear ratio.

4r70w

4 gears, Rear wheel drive, 70 arbitrary ford number, Wide ratio gears

[P72Ford]

I don't mean this to sound like a jerk.

But if you google 302 builds, you will come across a ton of stuff. I know, because I've done it quite a bit lately. From budget to wild builds, there are some comprehensive write ups out there, that provide documented evidence of performance.

With a good set of heads (AFR isn't your only option), precision machining in the bottom end, and proper cam selection (OTS or custom), you can easily make 400 fwhp.

If you want to go more radical on your cam selection, be sure to think about piston selection, because PTV clearance becomes an issue with more radical grinds.

[P72Ford]

I don't believe 70 is arbitrary.

I believe it refers to 700 newton meters (a measure of torque). Whether that is the rated capacity, or max capacity at TC, I am not sure.

[86VickyLX]

The AOD isn't an unreliable transmission if you have one rebuilt by someone who knows what they are doing. The problem seems to be in finding someone that knows what they are doing with one. Most factory AOD failures are that stupid plastic bushing, which was quite frankly a horrible idea. Add to that poor rebuilds, and you get a reputation as an unreliable POS. The cable is mildly annoying, but its really not much worse than a kickdown linkage.

The other factory flaw is the hole for the direct clutch is too small, there's not enough fluid to get into there, which causes the direct clutch failure as well. The fix for that is drilling the hole bigger, to allow for more fluid volume into the direct clutch.

[86VickyLX]

Why are there two of these?

[86VickyLX]

Whats the name of the electronic version of the AOD? Not the AODE. It came after with a wide gear ratio.

4r70W, why are there two 5.0-4.6 swap threads!?

[85crownHPP]

fixed.

[mrltd]

someone must have copied instead of moved....


though I don't know why a 4.6 thread is in the 5.0 forum....