I have done some research and I think it may work. I did a comparison of compression height between the DE,HR and VHR pistons.
I currently have my engine block on the stand waiting on pistons.
i am looking for a SLIGHT bump in compression for a all motor ported and cammed DE that has Osiris uprev software already.
my thought unless someone can tell me why I am wrong.
vq37 stock pistons, HR headgasket with MR bolts,revup pump, Tomei 264 cams,BC springs, ported heads stock DE rods with RevUp bolts.
ISR long tube headers, z1 Ypipe and custom 3inch exhaust.

I have done my homework but am not entirely confident it will work for sure. Would like someone hopefully more experienced with the VQ to chime in.

 

Here is some info i found searching around.
VHR: Rod length 149.5mm, compression height 29.95mm
HR: Rod length 151.8mm, compression heigth 30.1mm
DE:Rod length 144.2mm compression heigth 29.6mm

 

Bore is the same so they at least fit in that regard. Why not also do the 3.7 crank (assuming enough room in the bottom end), extra stroke would modestly increase low end torque.

 

https://www.myg37.com/forums/engine-...ml#post2923274

That may be helpful, at least in the differences and potential to handle increased power. .

 

If the mains were the same size,which we already know it isn't then i would consider doing this. Would pretty much be a poor mans stroker then.
i am just looking to know if the vq37 pistons would clear the valves. I know the HR pistons fit with a thicker headgasket or slight trimming of the pistons. Just trying to figure out if the vq37 would clear without thicker gaskets or trimming since it has smaller compression heigth but doesn't have valve reliefs for the exhaust side.