Currently in the process of planning upgrades for my AJ126 engine after sending a rod through the oil pan this past fall at limerock. Obviously there is a shortage of high quality parts for these engines in term of upgrades so I am reverse engineering or designing a lot of new high performance parts myself in cad and having them manufactured. I will be increasing the bore to somewhere around what you see in AJ133 which will make the engine over square and somewhere in the range of 3.6L. However I've also discovered the shortage of information on these engines and the shop manual does not provide a lot of engine specification you would expect to see including the deck height which is stopping me from figuring out my combustion chamber/ piston dish cc's and figuring out my static compression ratio. Is there anyone here who knows what the stock deck height is on the AJ126 engine? Additionally, if there is a more focused manual out there that is specifically for these engines please share a link so I can get this ordered.

Thanks!

 

I’ve only seen this AJ133 manual, nothing for the AJ126.
https://www.dropbox.com/s/ga083yv0w3...%20V8.pdf?dl=0