I was just wondering if anyone has put the 3.5 in their max, and bored and stroked it to make it a 3.7. Just had a few questions or if its even been done.
-Thanks BryceJayhawk

 

i do not believe anyone has a stroked 3.7 in their cars - plenty of 3.5 swaps

search for the howtos

 

Is there a benefit to putting a 3.5 in the 4th gen? Why not just purchase a 5.5 gen?

Just curious

 

That would be like saying "I don't like my stove. I'm going to buy a new house."

The obvious reason for the swap is the power advantage, but some people have grown attached to their cars, or invested money into other aspects of the vehicle. Parting with it for a replacement used vehicle may not always be the answer - you may acquire a vehicle with hidden problems. Sometimes it's better to stick with a car where the history is known. Also, many people do this as a hobby, so the experience alone is fun and rewarding.

 

5.5 gen 3433 lb, 4th gen 3001 lb

432 pounds less and better looking, thats why.

 

17 years with my 4th gen.. supercharged 3.0, blew the piston rings.. you think I would dump it because of this? heck no! 2006 3.5 maxima engine swap in progress as we speak. I agree totally with your logic. to much blood, sweat, and tears invested in my maxima to let it go.

 

The bad piston rings is why you were experiencing smoke out the front valve cover breather tube pipe...I knew it. Looking forward to the new engine.

 

My 5.5th Gen is 3320 lbs.....and it's an A/T SE!

 

i'm in Philadelphia an i think i was quoted $2500 for the swap.
We just don't have many if any shops to do the swap.
I few members that i have met on hear don't seem to offer hands on help.
I don't mind getting dirty at all.

 

Im not doing the swap myself, a motor shop in hempstead NY is doing it for me. This guy does mostly Nissans and have done plenty of 3.5 swaps and also full 3.5 swaps. 5spd tranny swaps.. you name it. His price for my swap is way less than 2500.. thats too much money. Unless that includes the price for the motor as well.

 

Yes that's including the motor

 

I think i might try it out. I want this to be my DD for a WHILE, so definitly going to do a swap, i just dont know if the parts from a 3.5 will hook right up, or if ill have to mod some from a 3.7 out of a 370.

 

because race car.

 

Stop while your ahead. if you want a 3.5 thats fine but dont start thinking you can bolt a 350Z/370Zs motor in to your 4th gen. That i can confidently say is not happening. There was a 3.6L car on here the owner decided not to stroke it.

 

im not saying bolt up, im just saying like maybe have to use the parts and mod them to fit the 4th gen, but ill probably end up doing custom exhaust and maybe a custom intake.

 

Actually his question is pretty legitimate, 5.5's can now be had for pretty cheap - like cheaper than your 4th gen value + vq35de engine cost. An engine swap is something only an enthusiast would do. You do it because you love your car and want to enhance it.

 

yea nothing from a 370 is fittings, damn near nothing from a 350Z fits. Only select parts do. i dont know how much you know about these cars or your mechanical skill but getting stuff to work off other cars is pretty difficult, something as simple as a thermostat does not just bolt up from the 350Z. SO baby steps first just mod your VQ30 with whats available now then move on to bigger things, you will be glad you did.

 

^This

 

I didnt figure a lot would work. But im just kinda at the point where if i keep the vq30 its not going to last. Ive got 209,xxx and im not gonna wait for problems to pop up. I wanna do the swap with a 6 speed, do some internal work and make the vq35 last.

 

A well maintained VQ30 will last and has lasted 400k+.

 

Im just saying, im not waiting around for something else to go wrong. I want this car to be around for a long time, and i want to change it up. Put some real money in it. And then once i get it in, go fast.

 

I have a low mileage 3.5 and if I wanted to get serious, I wouldn't bore and stroke it; I'd go for a turbo. Cost of: engine removal + replacement, machining, new pistons and rings, possible modded head gasket, possible need to machine the combustion chamber compared with turbo installation? I'd have thought at least as much if not more! And power gain? 3.7/3.5 = + 5.7% pathetic! Turbo running 7 psi = 50% power increase. NO FREAKIN CONTEST.

 

I guess youre right there. Im just thinking a little outside the box i guess. Maybe a little too outside the box. lol

 

Your trying to reinvent the wheel and make it square. The VQ30 is tougher than the 3.5 and will probably outlast the 3.5 you swap in. Weaker rods and low tension rings = oil burning and blown engines.

You can't put Chevy heads on a ford block, and you can't put 3.7 parts in a 3.0/3.5.

I have 300k miles on my 3.0 and have no fears of trouble any time soon. I intend to hand it down to my daughter in 5 years and have her drive it all through high school.