gkull

Yesterday, what a PITA. But anyway about a month ago we had a discussion on which ones were the correct part number. the 2 1/2 inch "B" width is super tight and I had a heck of time getting all three motor side bolts in. The other correct part# is the 62530 which is 2 5/8 and that extra 1/8th of an inch makes the install easier.

To get the mount bolt out that has the power steering frame going to it. The only tool that can get on it is a dropped end 9/16th box end

rcread

Thanks for the info. I just went out to my workbench, and I have the 62530 sitting out there. Phew.

bluedawg

Very informative.

RobbSalzmann

Been there, done that a few times. I usually bolt the mounts & p/s frame to the engine then shoehorn them onto the frame mounts.

I've thought of bung welding a nut to the front of the drivers mount to deal with the gymnastics George describes.

gkull

I'm lucky to have Summit racing 10 minutes away. I said screw the 62500's and just used the 62530's

MotorHead

I bolt the mounts to the block loose then connect to frame then tighten nuts. There is one bolt at the front drivers side that's a pain in the **** because the power steering bracket is in the way but you can get a wrench on it and turn it about 1/8 each time

TheSkunkWorks

Don't know what Summit shows, but the #62530 is the only mount listed by Moroso for 63-82 Corvette, and those I've done installed without issue.

RobbSalzmann

Doh! That's a great idea

MotorHead

I had solids in before and it really tightens up the front end real nice and no vibrations from a 250dur cam. I changed back to poly because every time I shifted it would bang, there is no give, even at low rpm. Let us know how you like the solids, I loved them at first but after about a year shifting normally it would band so I changed them

RobbSalzmann

good to know. I've had solids before, and this time I don't think I have a choice - I would worry the rubber ones might break loose.

Cactus Dave

Solid mounts go in real easy if ya do them like this....

BOOT77

LOL I bought my moroso solid mounts off a wall at a place long ago for my 68 camaro, so I couldn't tell you a part number. Saved em off that car n used on this one. The mount was a tight fit so I just bent one side out some n it slid on, bolt it on the motor n lowered it down. Just used some elbow grease to snug it back up with the bolt n nut and made sure it squeezed it tight. The one I used on the camaro was bent in some already, guse those mounts where smaller than these.

larrywalk

I used these solid motor mounts ONCE. After a year there was a 3/4" crack starting at the upper corner of one of the bends. It was good I caught it before it broke!

RobbSalzmann

I've never had this happen. I suppose its better that you could see the crack. With the rubber mounts, you don't know they're going to let go until the motor starts lifting and dropping back onto the broken mount. I don't see rubber mounts holding up long in 500+hp applications.

SmokedTires

Don't forget to use locktite when attaching to the block. While changing my oil this past summer, I found the left side mount bolts were starting to back out

TheSkunkWorks

IMCO, its best to develop a regular habit of close inspections with ANY high-performance/race vehicle. Even then, if you pound on anything long and/or hard enough you will still get caught out by the occasional freak failure. BTDT more than once myself (complementary trips to hospital included), and that in professionally maintained racing cars. That said, I've yet to have a solid motor mount fail (touch wood), but have lost rubber ones in dramatic fashion. My $.02

yellow 72

I bolted in a set of Moroso mounts after playing ONE episode of 'hang the throttle on the hood' game...

MotorHead

Wow a boosted 350ci that make less HP than my N/A 427ci; and to answer your question I was making passes in 454ci boosted rear enigine dragster in the late 70's and was top qualifier many times.

yellow 72

Maybe, but I'll bet the farm it's just as much if not more fun to drive.
And yeah I followed your 'super build' and I've got about a third of the cash in mine. I saw no need to use Mr.Pro Stock peices in a street motor. Any time you want to do a stoplight to stoplight in your Warren Johnson wanna be..bring it on.

And thanks for answering my question....but I didn't ask one.

TheSkunkWorks

Oh, this might be getting good...