hey there
i have a te magna with a 3 ltr and i was going to put 3.5ltr ralliart heads on it will it work or not or would it be easyer to put a 3.5ltr motor in and just put the ralliart heads on it with the bigger cams can anyone tell me please im new to the magna club

what things do u have to do to change from a 3 ltr to 3.5ltr

tamworth magna peaces out

cant answer that, but i doubt the heads will be a direct bolt on!
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how hard is it to put a 3.5ltr in it

Pretty damn sure they are interchangeable. It's the block height's that are different from the 3lt to the 3.5lt's

If you're doing a head swap make sure you get the heads serviced before installing them on your car. Basic service is $300, or $700 with a port job, more again if you want an awesome port job. If you do this everyone will tell you to get an aftermarket ecu. Basic piggyback is $1200 drive away and it is a must if doing this.

have u done your exhaust yet? probably the best place to start

so would the computer ve the same or will i have to change them to what things would i have to change

i already have a piggyback haltech

i have done exgust piggyback k and n air filter motor got 215 000 klm on it seem to be lossing power HELP PLEASE

Pretty damn sure they are interchangeable. It's the block height's that are different from the 3lt to the 3.5lt's


I don't know if they are interchageable or not, but you might be wrong about block height.
Cylinder block overall height is the same for 3.0 and 3.5 l motor 210.4-210.6 mm
What is different is cylinder bore inner diameter 3.0 l : 91.1 mm , 3.5 l : 93.0 mm and stroke 3.0 l : 76.0 mm , 3.5 l : 85.8 mm
Cylinder head overall height, both motors: 120.0 mm

would the values hit the pistons or would they be right