Mark@AMT Motorsport

You shouldn't have to lower the cradle to install the mounts. If you want to PM me your email I can send you the installation instructions. I would say in the worst case scenario if you have longtube headers they will likely need to be removed to install the mounts. Alternatively you could drop the cradle but then as you said you need to worry about your alignment if you're not running a camber kit. So our instructions have you jack up the motor to gain necessary clearance, rather than dropping the cradle.

Lowering the engine 3/8" of an inch won't screw up the alignment of the motor to the tranny and diff in back (yay torque tube). The lower the motor the lower CG and thats always a good thing. That said buy the lower mounts only if you're sure you have necessary clearance. Engine damper, leaf spring, and oil pan are the places you might have clearance issues. Honestly if it's a street car the lower mounts are overkill. I run the lower mounts on my car to make room for a FAST 102 intake manifold. I also have a dry sump and our race mounts are narrower to make room for dry sump lines. But again I would only recommend the lower mounts if you need them and you're aware of your clearances.

Mark@AMT Motorsport

Bumping this thread to say we've just got another 25 sets or so back in stock. They're hot sellers! Please let me know if I can answer any other questions.

https://amtmotorsport.com/products/c...n-motor-mounts

cseaman

3 months after I bought them I finally got to have them installed in conjunction with headers and some other maintenance stuff last week. I REALLY, really like them. My car is a street car only, but the increased directness in the car is so great. There absolutely is increased NVH and significant vibration at idle and taking off from a stop, but that was expected. Would definitely recommend.

Mark@AMT Motorsport

Thanks for the feedback Chris. Glad you like them! If you'd be so kind as to leave that review in the website I'd really appreciate it.


https://amtmotorsport.com/collections/c5-corvette/products/corvette-vulcan-motor-mounts

MR Turco

Installing these along with delrin bushings. Figured might as well dive in with higher NVH levels. Very excited to get these beauties in.

_zebra

as for the lower versions, i'm looking to run a 3/8" plenum spacer on my supercharger, so lower mounts would be required for necessary hood & windshield cowl clearance. how tight is it on the oil pan, suspension, headers, & balancer? i'm also looking at maybe running an 8rib accessory drive with a 10% OD crank.