oldzzy

Hey guys, well i finally got a chance to install my SB ARH's today, and they are hitting the drivers side motor mount right on the top of the mount. I really don't want to ding up the header, so i am looking for suggestions. I thought about cutting the rubber, and grinding the steel on the motor mount but i figured that the mount was designed like it is for a purpose. The motor has Edelbrock heads, and new motor mounts.

brownbomber77

Grind a little of the mount back, sometimes the mounts they use in production of the headers I imagine aren't the same ones that are available in every single parts store. That, and variation between motor mount manufactures can cause issues like this, as well. Just grind it back a little, see what happens. Unfortunately, the driver's side takes the most of the force when the engine is at full throttle.

chadman

Just use a solid mount on the drivers side. It will give you more clearance and limit motor movement at the same time. That is what I run.

Stevec

Hey chadman where can I get a set of solid motor mounts? What are the pros and cons?

380 Racer

Pros.......it keeps the motor from twisting.

Cons.......it puts added stress on the area of the #4 main web and can crack.

Stevec

What would you rec for a 540 or so hp street engine?
Sorry oldzzy didn't mean to high jack your thread.

11971four4two

bill was making mounts

https://classicoldsmobile.com/forums...tor-mount.html

chadman

Just to clarify I only run a solid mount on the drivers side. The other side is a standard mount. The drivers side is the one that takes the stretching force. This gives you more vibration damping than all solid. Like Nick said, some claim solid mounts can stress the block but I don't see it as a problem at the street/strip power level. I know guys running solids at much higher power levels than me without issues.

oldzzy

N/P i am also curious as to where to get a solid mount. I pm'd Bill, I am just waiting to hear back from him.

chadman

I could build you a solid mount. It is really quite simple. Three pieces of 5/16" thick steel, four holes and a couple of welds.

380 Racer

Granted mine wasn't a street motor. Higher RPM launches but shyt does happen .