01-25-2019, 02:00 AM
Join Date: Sep 2014
Location: New Zealand
Originally Posted by ss2115
Our SX4 is a 2009 with J20A engine and auto transmission.
Does a J20B also fit?
Does it bolt up all the same to engine mounts and bellhousing of the auto?
Does it use the same ECU?
Reason to ask is out J20A is using oil and now needs new timing chain guides etc. I can get a J20B with only 65,000klms on it at a great price.
I know they have a different head, different profile cams, different cam sensor, you may or may not have hydraulic valve lifters, the intake manifold is different (plastic) on the newer motor and a different shape as well from memory. I am not sure if you can fit the A manifold to the B heads, I suspect they are different bolt patterns.
I think (but not sure) that the block is the same. You will need to swap the head across (which means doing cam chains as well) as I don't think the J20B stuff works on the J20A ECU. No doubt if i'm wrong someone will correct me on this.
2015 5 dr Grand Vitara 2.4 (daily driver)
1971 V8 HG Holden with 383 stroker 9" torq lok and TH350 trans (the toy)
Mitzi RVR 2.0 (not one of my better buys)
the 2013 3 dr GV is now the off road only toy
"Dogs feel very strongly that they should always go with you in the car, in case the need should arise for them to bark violently at nothing right in your ear."