Engine plates not for street cars?

Motor plates when run on the street will cause viberation from the drive train that the rubber mount usally take care of.Pulley out of line put a electric water pump on or a elactric water pump drive on it.

"For racing use only" The main reason is they will sell the product to Joe Shmoe and he will whine and bitch about the vibration or harshness of the part. It's kinda like a swim at your own risk thing. I have seen spacers offered by a few companies for correcting the alignment.

Mine works great

I thought it would vibrate like hell and make my butt cheeks go numb. Nah! It actually works very well, front plate is behind water pump and tranny is on a urethane mount. Crank pulley is custom so no spacers. Motor makes 808hp with a 5speed, idles @ 850, sounds like dynamite going off every time it fires, but does not feel like it is a solid mount.

I think bad rubber mounts that let two metal parts vibrate against themselves is where you get the real harsh vibration. Good balance on motor parts, balanced driveshaft with a small angle @ both ends and it will work. Mines as smooth as any rubber mounted hot rod I have ever ridden in.

If the engine fouls a plug, you will know it in the seat of your pants immediately.

I have a `89 Mustang and run solid eerything. No vibration at all. I finally did get vibration when I installed solid aluminum plugs for the crossmember.