View Full Version : C-Beam Plates - Do I Want Them?
Seeing as how my ZR-1 is basically stock, will for the time being stay that way, and is only street driven, are C-Beam plates something I want to invest in now? How big a difference will they make for me?
sleazy rider
10-23-2021, 12:32 PM
the biggest improvement is the fact that i can place a beam plate on top of the beam and thread the bolts without using a wrench to keep the nuts in place and not turning while tightening.
Paul Workman
10-23-2021, 01:06 PM
Yes! I highly recommend them.
And, being a steel plate, the force is spread across a much wider area and with a little BLUE LockTite on the surface too, there will be pretty much zero chance of the "cold flow" that aluminum will do under extreme pressure - causing loosening. (Otherwise, the C-beam holes get wallowed out as the aluminum beam shifts around under stress.)
And, as mentioned, beam plates (from Bill) capture the nuts so you don't need to get a wrench (or fat hands, in my case) up in there with a wrench to hold the nuts. The plates make removal and re-installation afriggin BREEZE!
Worth every penny, IMO.:thumbsup:
1991 Corvette ZR-1
10-23-2021, 01:19 PM
Another vote for the beam plates. I have them on the 91 and the ease of reinstalling the beam with them alone is worth the price. Should have been a factory part.
Thanks, guys.
The plan is to have everything apart to swap every bushing in there, including the bat wing, so while we do all that stuff, might as well do the C-Beam plates too. Should make it a whole new car.
sleazy rider
10-23-2021, 03:27 PM
i bought my beam plates for my 89 6-speed, then transferred them to my 94 automatic, then transferred them to my 96 6-speed and finally put them on my 91 z. these fit all c4's.
AndrewL
10-26-2021, 08:21 PM
I had a set on my old 90 base model. I drove that car hard and the beam plates did help the car point straight on hard up shifts. I will be getting a set for my 91Z.
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