rumo1112

Ok turns out my SH Block is bad its beyond repairable because pistons scrapped on the cylinders wall to deep. I have a JDM Base H22A sitting in my garage.

I know i need a half shaft to run to the driver side axle....

Can i just remove the ATTS Unit and put my Base H22 and run it like that with that sh tranny without the ATTS?

rumo1112

or is anyone selling a H22A4 SH Block for a good deal i can get?

Hidenplanvew

Or you could sleeve the block... But yes you can take off the atts system off...There were alot of guys who were doing it cause they have a pretty high failure rate and very exspensive to replace. The base motor is going to have alittle less power cause the compression is alittle lower. you might need a new ECU too because of compression diffrence

minilogoguy18

They're rated the same, SH block just has a different bolt pattern so that the ATTS unit bolts to it rather than a normal half shaft.

Wing8806

You need a base transmission too if i'm not mistaken...

as well as axles


for the JDM h22a - you may/may not need to change the ECU. I know the distributor's are different since they have an internal coil. So the wire harness should be different.