MC vs. 20vt-weaker bottom end.

[auditude at neta.com]

I would speculate that KX and JT pistons also have similar ring 
lands flimsiness compared to MC pistons, since they are n/a.  

So, my idea of clearancing them for the oil squirters to use them in 
an MC motor, bringing it up to 8.5:1 c/r would not be a viable 
option?

Any thoughts on this?  I was thinking I could use the pistons from 
my "spare" Coupe GT motor, and put them in my '88 5kcstq to 
bring up the c/r a bit to help it start rolling from a stop.  I don't want 
to put weaker parts in the thing.

Thanks,

Ken

> JShadzi at aol.com wrote:
> 
> One thing I have learned recently, that I have not ever heard brought
> up regarding using the NG bottom end in a 20vt motor, the NG and MC
> motors have vastly different pistons AND connecting rods.  The NG uses
> a slimmer, longer 144mm rod, the MC uses a beefy, shorter 136mm conn
> rod.  The MC has a lower compression height, but is a much taller
> piston with ring lands twice that of the NG piston.  Also, the NG uses
> a 20mm wrist pin, the MC uses a 22mm.  So, problem is, building a more
> powerful motor than the MC using a weaker engine.  I am not saying
> that the NG won't take 300hp, but compared to the MC, it will bend
> rods and melt pistons sooner, a major consideration in going the 20v
> route to get considerably more power than the 10v MC.  Pretty much
> rules out the idea for me, custom pistons required. Javad 80tq.com