I bought a VQ35 to drop in my 96 4th gen for 200$, it was stored since 2006.
The former owner told me something about the engine that bugs me a bit...
he got that engine swapped in his 4th gen in 2006 and after using it for 5000km, the engine studdered and died on the highway. He removed the oil filling cap and the intake cam on the front bank wasnt moving while cranking the engine...

the valves might be bent!?!

 

If you only have $200 invested in this so far, consider this a perfect parts donor engine. When a camshaft remains still while the crank is turning, major valve damage usually occurs.

Start over with another one.

 

I suppose this motor had the 3.0 timing cover swap? my guess is that the dowel that goes with cam adapters may have snaped, as that is not a common occurance. probably effected the intire timing chain. at the least you will need new heads. you could slap your 3.0 heads on there and save yourself some money. crack it open and inspect those pistons. you never know...

 

3.0 heads wont fit with the 3.5 IM very easily. Also defeats the purpose of the 3.5 swap.

 

yeah, thats what I figured out. will open it up then sum up the parts that will need to be purchased.

 

Why's that?

 

Actually...

Using the VQ30 heads/VQ35 cams/VQ35 block along with the VQ35 intake manifold and all that results in a high compression 3.5L.

 

00VI > 3.5 IM.

 

Explain please. (Aside from the material differences)

 

It is my opinion that a VQ35 with massaged 3.0 heads and 00VI has better power making potential than with 3.5 heads and a FWD VQ35 IM. The 00VI is that good IMO.

 

3.5 heads flow insane for stock. Port them and you can get 320cfm out of them. You are taking a step backwards by using the 3.0 heads. Sure it will raise the compression, but then you don't have the headflow to support it.

 

But why?

FWD VQ35 IM seems to have more volume than the 00VI which is necessary for top end power.

 

Dandymax made 270 WHP out of a 3.0 with stock compression, LIGHTLY worked heads, and 00VI.



..........





Imagine what he could do with .5 extra liters and almost 2 points higher compression (3.0 heads on 3.5 block).

 

Yes that's true.

How come you never went through with the VQ35/00VI hybrid?

 

That's great but if the IM is rubbish, it's all for naught.

 

I've mentally moved on.

 

3.0 Heads-yes
00VI-good, but not as good as previously thought. Resultst coming soon.

 

 

I was under the impression that the using 3.0 heads on a 3.5 block would be taking a few steps backwards.

 

wow, the thread moved...

final results, the block is totalled and left for the trash can...

 

Well, time to bring this thread back a bit.
I'm volunteering to be a lab rat, Ive been sucking down info from this site since i arrived and I want to try to give at least something back, even if its just a failure in trying something new. Im no engine build master and will be learning just about everything as i go along with the build and expect it to take at least all summer.

Ive got a engine im purchasing for 300 with a blown head gasket, since i will be disassembling the engine anyway and i have the 00vi already on my engine...
JWT s1 cams, 2004 3.5, 2001 00vi(ssim/Blockoffplate), will be using 3.0 ported heads, either emange blue, EU, vafcII, or that MAFterflow ive been investigating is my plan. low end will suck, but eh.

couple questions before while i make my list,
for my head-bolts will i need 3.0 bolts or 3.5? not sure if the heads affect length since I haven't taken it apart yet. im having trouble finding the thread comparing the 2,I know its here somewhere
is it possible for me to put 3.5 injectors on my 01 LIM or will i need to go aftermarket?

i need any sort of input positive or negative that is possible, i learn best by being told im wrong about something(and then it being explained why), but if nobody sees a problem with this setup then im already one step ahead. i have the 97,01 and 04 FSM so feel free to quote them.

you can fit the 3.5 in the trunk of these cars right? i also saw no reason to start a new thread untill i have the engine in my possession.

 

O"rly ?