Wheelman1

Just wanted to share some info since it was a little criptic trying to find a answer that was certain. A 3.5 from a odyssey or MDX and pilot.
Only modifications that need to be done are on the wiring harness that goes under the fuel line to the injectors (needs hard plastic taken off and soft conduit to cover that section)
and the serpentine belt is needed to run accessories so make sure you get the tensioner. Side note: a/c compressor bolts right up and has no problems.
I used the 3.5 manifold and it fits under the hood with no problem and all transmission bolts line up.
The torque increase is fun and the wife loves it... And the replacement engines are dirt cheap.

thoiboi

What transmission did you use though?

Wheelman1

All factory nothing else changed.

thoiboi

Ahh,

if the transmission decides to go, I'd suggest putting an Accord v6 transmission in its place: https://acurazine.com/forums/second-...n-swap-905115/

Wheelman1

Oh ill just rebuild the transmission with the fixes. (And i'm sure I will have to) But thanks.

zeta

iTrader: (1)

Wheelman1, I know the J35A3 engine from the 01-02 MDX will fit. Do you know what years one should query for the Odyssey and Pilot?

Thanks.

gnuts

iTrader: (1)

the ody was 02-04 J35A4. supposedly didn't have factory forged crank like the J35A3.

fsttyms1

I wouldnt waste my time as there are "no" real "fixes"

SykVSyx

Well, since your post relates to my current project as well, Michael, figured I would chime in.

In the 02 Accord, I used the 02 MDX engine with the 06 Oddy tranny. Ran great, only issue I had was hood spacing, so we got rid of the IM spacer and cut the hood frame, problem solved.

Not sure if it has been mentioned anywhere, but the sub harness from the Accord(TL in the current case) tranny should be used for the Oddy tranny to connect to the MDX engine. Found this out a little late, and the mechanic ended up hard wiring the two, which I wasn't thrilled about, but everything worked fine. Lesson learned and not forgotten.

Same plan for the 03 A Spec.

According to Paul(NVA-AV6), the Oddy J35 had some differences, which you pointed out, which was why he recommended the MDX J35.

I think the 05-06 Oddy tranny was SOMEWHAT more reliable than the Accord equivalent, I had no issues, so will be going the same route again as far as the basis for the transplant.

Internals will be upgraded on the J35, still hopefull the Oddy tranny will hold up under the pressure.

MidoriTL

ill chime in here as well, i have and 02 tl type s, motor dropped several valves last year. so i went with the j35 from a 00 ody and the only things i had to change to be able to use the same harness and ecu, trans etc and keep close to the same tl-s power was parts in the head. the type s does have bigger intake runner and slightly bigger valves as well but inside the head you have to use the type s cams and cam assemblies for both heads along with the type s injector as well being that they are 270cc and the j35 are 220cc i believe. pretty much taking everything out of the type s heads that can be unbolted and swap it all into the j35 heads. i also used the type s intake runners and manifold. the type s runner are larger diameter than the j35 intake ports so in order for better flow you will need to mark and port match for best performance. the j35 has lots more tq and is a blast to drive. and doing the setup this way there is not cut out under high load on the motor at higher revs. car runs extremely smooth.

03 tls nc

iTrader: (6)

The J35A3 is the way to go, forged crank, same heads, runners, injectors and IM as the J32A2 they even use the same reinforced block. The oil pressure spring and valve is different but can be changed with new Honda parts for less than $10. The cams and springs are different but if not changing the compression ratio probably not worth changing. The J35A3 has 10:1 compression where the J32A2 has 10.5:1 due to raised pistons in the J32A2, Milling the J35A3 head .020" will raise the compression to 10.5:1 and cost less than $100 at the machine shop. The 35 really likes the light weight crank pulley since it has a longer stroke and heavier rotating assembly. The TLs harness is a direct fit with no modifications, they both use the flapper in the IM and don't believe the hype if you are NA keep the flapper hooked up. Just because it always comes up the J32A2 uses a 1mm larger intake valve but they both use the same valve seat so it becomes a disadvantage due to shrouding its a moot point.

As far as the auto trans it can be re-built to hold the power of a 3.5 with no problem. Use the full Tran-Lab shift kit (use the race/towing specs), Raybestos GPX clutches, Level 10 TC and TCC valve. Use only Honda fluid and change 3qts at least every 3rd oil change, sooner if more power or driving hard. The biggest key to keeping it from killing its self it to adjust the A-B solenoids, you will need the tool from Sonnex its about $25 and is a must. You can take an older stock trans and extend its life by keeping the fluid changed and the A-B solenoids tuned correctly.