Some of you know that I've been looking to do the 3.5L upgrade, and this weekend I'm finally going to look at the engine. If it's in good shape (J35A7 out of a new Odyssey, only 4,000 miles, replaced under warranty due to warped heads) then I'm going to pick it up.

Now onto the questions --

1. As far as I know, the block itself is the same as J32. Same bore, but different stroke. So can I get by just using the internals or do I have to swap the block itself, too? If I do have to, then would the Type-S heads bolt right up to the J35 block?

2. Will the J35A7 pistons clear the J32A2 valves?

3. How will the redline be affected? It's longer stroke than J32A2, so it will go down I'm sure, but I dont' know by how much.

4. Are there some internals in the J32A2 that I should keep instead of replacing with J35A7 components? Or is it a straight-up "swap-all"??

That's about all I have to do ask for now. If the transaction is successful, then I'll start tackling at this project in the next few weeks followed by a dyno-tune.

These are things I can find out once I start the project, yes, but it would help to know in advance. Anybody who has done this before, please help out. Thanks!!

 

Maybe you should PM typeR.

 

good news rob! have you tried sending a pm to austin519 at the other site?

 

http://www.cardomain.com/ride/184466/26

 

You may want to contact Serge(02av6 is his name i think) or check out the v6performance forums. He made a post on the 3.5 swap.


Here is a link that may help you. Good luck.


http://www.v6performance.net/forums/...ad.php?t=54261

 

taken from his rite up

UPDATE (6/23/2005)
There are also couple options:

Option 1
With '01 or '02 Odyssey complete block (crank/rods/pistons) it is required to purchase 2005 Acura RL pistons (new set $50 each) This is a best option still since these pistons have clearance for large 36mm J32A2 (intake) valves thus no modification needed. Despite the fact they have higher 11.0:1 CR still even supercharger can be used here with low boost up to 7psi intercooled (assuming safe AFR). In addition, if 11:1 CR is too high for you, you can use '03 CL-S pistons with 10.5:1 CR.

Option 2
'01-03 J32A2 block (CL-S)
Required to purchase the following:

'02-'04 Odyssey (crankshaft)
Product No. 368270 or
Honda part #13310-PGK-A00 $367.32

'02-'04 Odyssey (connecting rod)
Product No. 368269 or
Honda part #13210-PGK-A00 $79.48 each

'03 CL-S (pistons) - 10.5:1 CR or
'05 RL (pistons) - 11.0:1 CR

Note: Odyssey pistons do not have clearance to fit large 36mm J32A2 (intake) valves. Solution - custom job to increase valve pockets.

BTW, The only advantage to get J32A2 block is due to better cylinder sleeves to withstand heat designed for higher redline vehicle, otherwise depending on the price Odyssey '01, '02 block is the best bet.

 

rob there is some great reading there. you may want to take a look at all the pages. Not sure about your new block

 

Kris:

Great news for those who got the J32A2. But what about for us TL-P guys with the J32A1 engines? What are the parts that is needed to transform a TL-P to a 3.5L? I know that many of the parts you've listed should be the same, I'm not sure which ones are different. Help a noob out! Sorry Rob for hijacking your thread, I figured might as well have both TL-P and TL-S apps in the same place!

 

since teh blocks are baisicaly the same just different cyl linings id say this would all work with the tl-p

Here are the updated options :


BLOCK/HEADS (incl. manifold (upper/lower), tb)
------------------
J30A1/J30A1
advantage: no modification needed.
disadvantage: no torque until turbo/sc kicks in.

J30A1/J32A2
advantage: mid-range and top-end power
disadvantage: J30A1 pistons have to be modified to fit large J32A2 (intake) valves.
Not much torque until turbo/sc kicks in.

J32A2/J32A2
advantage: no modification needed, mid-range, top-end power.
disadvantage: torque is still ok but better than J30A1

J35A4/J30A1 (Odyssey '02-04/ '00-02 Accord V6)
advantage: no modifications needed, great torque, nice mid-range
disadvantage: top-end power

J35A3/J35A3 (Acura MDX '01-02)
advantage: no modifications needed, great torque, nice mid-range
disadvantage: little less air flow than J32A2 but very close.

This option looks like a good choice if getting the complete engine or even separate short block and cyl. heads/manifold due to a price. And MDX the cyl. heads are the same part # as CL-S, however intake valves and cams are different than CL-S.

J35A3/J32A2 ('01-02 MDX/CL-S '01-03) or J35A4/J32A2 (Odyssey '02-04/CL-S '01-03)
advantage: great entire powerband and especially torque.
disadvantage: Need CL-S or RL pistons.

There are also couple options:

Option 1
With '01-02 complete MDX block or '02-04 Odyssey complete block (crank/rods/pistons) it is required to purchase 2005 Acura RL pistons (new set $50 each) This is a best option still since these pistons have clearance for large 36mm J32A2 (intake) valves thus no modification needed. Despite the fact they have higher 11.0:1 CR still even supercharger can be used here with low boost up to 7psi intercooled (assuming safe AFR). In addition, if 11:1 CR is too high for you, you can use '03 CL-S pistons with 10.5:1 CR.

Option 2
'01-03 J32A2 block (CL-S)
Required to purchase the following:

-= hondaautomotiveparts.com =-
'02-'04 Odyssey (crankshaft)
Product No. 368270 or
Honda part #13310-PGK-A00

'02-'04 Odyssey (connecting rod)
Product No. 368269 or
Honda part #13210-PGK-A00

Main bearings + rod bearings

-= acuraautomotiveparts.org =-
'03 CL-S (pistons) - 10.5:1 CR or
'05 RL (pistons) - 11.0:1 CR

pistons rings (per chosen model)

Note: Odyssey pistons do not have clearance to fit large 36mm J32A2 (intake) valves. Solution - custom job to increase valve pockets.

BTW, The only advantage to get J32A2 block is due to better cylinder sleeves to withstand heat designed for higher redline vehicle, otherwise depending on the price Odyssey or MDX block are the best bet.

Keep in mind, J35A5 '03-04 MDX will not fit on 6th gen. AV6/CL/TL/CL-S/TL-S due to different design, and looks like only for 7th gen. AV6.

 

I don't have time to read all that right now, so I just skimmed through it all, but thanks for all the help, guys. I really appreciate it.

And it seems I was wrong on the engine spec. It's out of the new Odyssey, so it's a J35A4.. might even be a J35A3, but I was told that it was the new Odyssey, so I'm guessing it's the A4... nonetheless, I'll get to check it out this weekend. If it's an A4, then I don't know. I might take the risk and do it, as it seems nobody has done it before with the A4, or I might start looking for an A3.

 

J35A3/J32A2 ('01-02 MDX/CL-S '01-03) or J35A4/J32A2 (Odyssey '02-04/CL-S '01-03)
advantage: great entire powerband and especially torque.
disadvantage: Need CL-S or RL pistons.

 

Is the newest Odyssey J35A5, then??

 

not sure havent found any thing on it

 

^^ fkn crazy.
i'm posting just to learn. user cp will keep me updated. GOOD LUCK!

 

 

says me wondering how ******* is it that you u make sense of all this senseless talk

j/k i'm following everything you say!...oooor not...
give me some time to figure it out.

 

its just a parts list with engine codes and such

here is more to chew on

J30A1/J30A1
advantage: no modification needed.
disadvantage: no torque until turbo/sc kicks in.

J30A1/J32A2
advantage: mid-range and top-end power
disadvantage: J30A1 pistons have to be modified to fit large J32A2 (intake) valves.
Not much torque until turbo/sc kicks in.

J32A2/J32A2
advantage: no modification needed, mid-range, top-end power.
disadvantage: torque is still ok but better than J30A1

J35A*/J30A1
advantage: no modifications needed, great torque, nice mid-range
disadvantage: top-end power

J35A*/J32A2
advantage: great entire powerband and especially torque.
disadvantage:
Need RL pistons.

UPDATE (6/23/2005)
There are also couple options:

Option 1
With '01 or '02 Odyssey complete block (crank/rods/pistons) it is required to purchase 2005 Acura RL pistons
(new set $50 each) This is a best option still since these pistons have clearance for large 36mm J32A2 (intake)
valves thus no modification needed. Despite the fact they have higher 11.0:1 CR still even supercharger can be
used here with low boost up to 7psi intercooled (assuming safe AFR). In addition, if 11:1 CR is too high for you,
you can use '03 CL-S pistons with 10.5:1 CR.

Option 2
'01-03 J32A2 block (CL-S)
Required to purchase the following:

'02-'04 Odyssey (crankshaft)
Product No. 368270 or
Honda part #13310-PGK-A00 $367.32

'02-'04 Odyssey (connecting rod)
Product No. 368269 or
Honda part #13210-PGK-A00 $79.48 each

'03 CL-S (pistons) - 10.5:1 CR or
'05 RL (pistons) - 11.0:1 CR

Note: Odyssey pistons do not have clearance to fit large 36mm J32A2 (intake) valves. Solution - custom job to
increase valve pockets.

BTW, The only advantage to get J32A2 block is due to better cylinder sleeves to withstand heat designed for higher
redline vehicle, otherwise depending on the price Odyssey '01, '02 block is the best bet.


The best bet is to have '01 Odyssey block and swap in '05 RL pistons. Not sure about '01-02 MDX block this should
be checked. '03-04 MDX crankshaft which is the same part as '05 RL
will not work.
Bottom line, I checked crank, rods cannot be used from either '03-04 MDX or '05 RL on Odyssey block - they won't
work. Only 'RL pistons/rings are good.

Piston Part#
13010-RJA-000, 2005 RL, $50.47, 36mm/30mm (intake/exhaust valves)
13010-PGK-A01, 2002-2004 Odyssey, $29.89, 30mm/30mm
and Accord V6 valves are 30mm/30mm.

And since MDX piston is exactly the same as Odyssey, let's stick to Odyssey.

This is the documented proof showing '05 RL pistons are perfect fit for large CL-S/TL-S 36mm intake valves when installing 3.2L heads
on 3.5L block whereas '02-04 Odyssey pistons required metal removal to increase valve pockets to fit.
Let's just stick to Odyssey

BTW, $50 each '05 RL piston set can be purchased from acuraautomotiveparts.org

So those who want J32A2 (CL-S/TL-S) heads on J35A1 ('01 Odyssey) complete block the best bet is '05 RL pistons otherwise get '02-'04
Odyssey pistons and have machine shop to clear the valve "pockets"

Or another option is '01-03 J32A2 (CL-S/TL-S) heads on '01-03 J32A2 (CL-S/TL-S)block. But you need Odyssey '01-03 crankshaft and rods
as indicated on the page 1 (see J35A1/J32A2 listing) + '05 RL pistons


Here are the updated options :


BLOCK/HEADS (incl. manifold (upper/lower), tb)
------------------
J30A1/J30A1
advantage: no modification needed.
disadvantage: no torque until turbo/sc kicks in.

J30A1/J32A2
advantage: mid-range and top-end power
disadvantage: J30A1 pistons have to be modified to fit large J32A2 (intake) valves.
Not much torque until turbo/sc kicks in.

J32A2/J32A2
advantage: no modification needed, mid-range, top-end power.
disadvantage: torque is still ok but better than J30A1

J35A4/J30A1 (Odyssey '02-04/ '00-02 Accord V6)
advantage: no modifications needed, great torque, nice mid-range
disadvantage: top-end power

J35A3/J35A3 (Acura MDX '01-02)
advantage: no modifications needed, great torque, nice mid-range
disadvantage: little less air flow than J32A2 but very close.

This option looks like a good choice if getting the complete engine or even separate short block and cyl.
heads/manifold due to a price. And MDX the cyl.
heads are the same part # as CL-S, however intake valves and cams are different than CL-S.

J35A3/J32A2 ('01-02 MDX/CL-S '01-03) or J35A4/J32A2 (Odyssey '02-04/CL-S '01-03)
advantage: great entire powerband and especially torque.
disadvantage: Need CL-S or RL pistons.

There are also couple options:

Option 1
With '01-02 complete MDX block or '02-04 Odyssey complete block (crank/rods/pistons) it is required to purchase 2005 Acura RL
pistons (new set $50 each) This is a best option still since these pistons have clearance for large 36mm J32A2 (intake) valves
thus no modification needed. Despite the fact they have higher 11.0:1 CR still even supercharger can be used here with low boost
up to 7psi intercooled (assuming safe AFR). In addition, if 11:1 CR is too high for you, you can use '03 CL-S pistons with 10.5:1 CR.

Option 2
'01-03 J32A2 block (CL-S)
Required to purchase the following:

-= hondaautomotiveparts.com =-
'02-'04 Odyssey (crankshaft)
Product No. 368270 or
Honda part #13310-PGK-A00

'02-'04 Odyssey (connecting rod)
Product No. 368269 or
Honda part #13210-PGK-A00

Main bearings + rod bearings

-= acuraautomotiveparts.org =-
'03 CL-S (pistons) - 10.5:1 CR or
'05 RL (pistons) - 11.0:1 CR

pistons rings (per chosen model)

Note: Odyssey pistons do not have clearance to fit large 36mm J32A2 (intake) valves. Solution - custom job to increase valve pockets.

BTW, The only advantage to get J32A2 block is due to better cylinder sleeves to withstand heat designed for higher redline vehicle,
otherwise depending on the price Odyssey or MDX block are the best bet.

Keep in mind, J35A5 '03-04 MDX will not fit on 6th gen. AV6/CL/TL/CL-S/TL-S due to different design, and looks like only for 7th gen.
AV6.

 

Ah, I finally had time to read up on all this stuff tonight. Thanks a lot for the information to everyone, especially Kris.

A plan is coming together... more info to follow soon.

 

I bought the engine today. The damn thing is still brand spankin' new with only 4k miles on it. Guess how much I got it for.


The project starts tomorrow.

 

Which block did you go with?

 

$2?

 

J35A7


Got it for 200 bucks.

 

Why? You using the stock block?

 

Yep, that's the plan.

 

^ i hate you

 

I know.

 

You sure that crank even works?

 

It seems it would. But I guess we'll find out for sure in the coming week.

 

How much power to you expect to gain by going to 3.5? Wouldn't be better to just get a supercharger if your goal is to improve performance (i mean SPEED)????

 

Supercharger is planned for next season. Hopefully I'll have enough money to get it done over the winter; if not, probably by the beginning of next season.

As for power increase from the 3.5 block... I honestly can't say for sure. But it'll be going on the dyno as soon as it's done to get tuned.

 

the guy on the accord forum got more hp from the 3.5 than the SC

 

Shitty, I found out today from 02AV6 and my friend that the A7 will not work.... the crankshaft is too short... enough said.

Since it is possible to retain the factory block, I'm just going to order new J35A4 internals and do it that way.

 

Hey if you didn't have the website to order the parts from, here you go



http://www.hondaautomotiveparts.com/

 

cant you use the 3.5 block also? or has the block changed too?

 

A7 is not compatible with our transmission, apparently.

 

Is it out of an 05 Odyssey (didn't know what you meant by new Odyssey)?

 

Yep, '05.

 

yea thats what i thought

 

Wish i'd seen this post before today. your transmission will not fit on that block, but it is a good deal. you may be able to sell it at the v6p forum for the 7gen accord guys. good luck.