Solid or poly motor mounts?

[z28-50]

Looking for feedback from anyone who has run both.
I have a set of both.

Will either increase the amount of knock the PCM detects?
Pros and cons of either?

Time for winter mods.:
Long-tube headers
Solid or poly motor mounts
LT4 knock module
Mcleod dual disk clutch
Line-lock

[sman]

Poly

Ive done a car with both. Not only were solids a PITA to install and get the trans lined up, but it shook the piss out of the car. I like things to feel solid, but IMO, it was just annoying. I much prefer poly, had mine in for 3 or 4 years no problems.

[farmington]

don't want to hijack the thread, but I still have rubber mounts and the motor might be coming out to do the heads and converter. for those who have used poly mounts, like them better or worse than factory rubber?

[DETROITMUSCLE]

I love mine, stiffens the motor up enough that it doesn't move around at idle or revving it much but also doesn't rattle the interior panels off.

[Superman09]

I run solids, and for anyone interested, I can offer the new style version for sale now as well!

CNC cut to bolt to the block just as the factory clamshell does. This same CNC cut piece has the single bolt hole in it too for the stock motor mount pedestals, so you don't need to replace the entire unit!

[Superman09]

I forgot to see this thread was for a LT1, my apologies as the mounts I posted are for a LS1

[JoeliusZ28]

I think one thing people forget while having this conversation is the effects of cam size, compression, etc as to which will work best on a given application. Consider a rubber mallot vs a hammer, sometimes the rubber mallot actually does more damage than steel because of the way it transmits force. In simple terms, you might not know what works best until you try unfortunately