How easy can a 6 cyl nissan engine be put in place of a 4cyl?

Looking at an 89/90 Nissan hardbody pickup 4x4 that has a bad 4 cyl engine. Will a 6 cyl bolt up to the transmission (standard) ? Will all the original mounts work or will there have to be some modifications done?|||May I ask why? The 4 cylinder is a much more reliable engine. With the V6, you'll have a timing belt whereas your 4 cylinder has a chain. Also, the V6 has fuel injector issues. While the V6 is still an overall reliable engine, the 4 cylinder is even more reliable with less things to deal with.|||if you wan a six cylinder you might as well by the truck. the 4 cylinder engine has the best mpg you can ever get for a truck. you can get up to 27 mpg witch still beats todays milage for trucks.

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|||Not that easy for one the new one is biger so you have to modify a few things.|||Why bother. It's cheaper and easier to buy a replacement vehicle with the engine you want. It's just a huge headache doing a modern car engine swap.|||Twenty years old isn't it time for a reliable new truck? Besides the expence, V-6 and 4 cyl transmissions are different. Engine wiring harnesses are different too. There are Mexicans who will pay you money and drag that truck to Mexico. And The States that need to eliminate smog pay money to get old klunkers off the road. The new frontier V-6 4.0 liter has 265 hp and gets better gas milage than the 4 banger you have. And there is one big difference when you start the new truck you can drive anywhere knowing you'll be able to drive home.|||No.


You need to replace the transmission and exhaust system to fit the V6 engines different design.