Continuing on my LSA project - I got my HB on and pinned, re-tightened the cradle and installed These Mounts. I was told that a 3/8" drop would cause the Oil Pan to hit the Transverse Spring at Full Droop - It does. I've had the car 3' off the ground with the upper A-Arms unbolted for a few weeks and I am DEFINITELY at Full Droop - plus a little. How much should I worry about this? I don't plan on 'Getting Air' too much when it's all done. The bolts seem to be long enough to fit but I'm having trouble tightening them because of the interference. I bought longer bolts but hesitant to torque them and put too much force on the Pan.
What say YOU?
Tomorrow's job is getting the FEAD stuff back on and the Rad / Fans in. Front & Guts done - Then... the Torque Tube.
Thanks for any help - I swear I'm gonna start a build thread on this - I don't want to keep HiJacking Mr Black's fine work. He's WAY ahead of me in this race. Hell, I can't even see his Tail Lights.

 

Nothing??
I don't want to bend / break something or cause a leak.
I put my A-Arms back on today but the suspension is still hanging pretty low. Spring is touching the pan but the mounts are mot movable so it's JUST touching. Still can't get the bolt thru but I think it is just too short. I can't get the right metric bolt (M12-1.75) locally so I got some 7/16's that are long enough - they are close to the Dia. of the Metric. I don't want to tighten anything till I'm sure I wont cause a bigger problem.
TIA for any advice.

 

I noticed that as well. Hasn’t caused any issues.
The only time it will hit the pan is when you have the car jacked up. Or doing wheelies. 😊

 

Thanks for the reply! I was hoping it would be a non-issue. Does your car have lower mounts? I know Mr B's does but doesn't interfere - I wonder why...
When I'm done with this car it will have enough steam for wheelies (or Diff parts laying on the street) but I don't plan on doing that too much. We'll see though. I just want to keep it rolling and get done. You're a big help to a LOT of people here - THANK YOU!!

 

Are these the standard delrin or billet style solid motor mounts? Or a specific 3/8" drop motor mount. I was going to put the 80$ delrins advertised for corvette, gtos but not if they are 3/8" lower as the transverse spring will hit the stock oil pan if you leave it on jackstands for a week with the wheels hanging. At first it had 3/4" gap by then end of week after replacing harmonic balancer and cam swap i seen it was maybe barely hitting the oil pan. How hard was it to remove the stock corvette mounts as they have 2" studs on each end vs the slip fit mounts and slide thru bolts. Did you have to jack up the engine and lower the cradle?

May i ask what brand or part number are those specific 3/8th" lowering mounts?

 

You've had the stock mounts or aftermarket or 3/8" lower mounts make contact with the oil pan when on jackstands and didn't damage the oil pan?

 

Hi Justin
I was a rebel and refused to remove the Steering Rack for my Cam / HB swap. I found guidance here - this is a GREAT PLACE! So I lowered the cradle and lifted the engine which worked out for me because of the Engine Mounts. My car has been 3' in the air for weeks and my upper A-arms were unbolted so I was REALLY hanging low - it'll probably take 10 days for it to settle once I get it on the ground again. I think you can swap mounts if you unbolt the bracket from the engine and lift it a little and NOT drop the cradle - someone else might confirm / deny that.
I got them from LevelZero Motorsports - an Ebay purchase - they were $130 in 2019. They are Poly and appear to be a Hinson Knock-Off. Very nice work and the guy will make them any size you want. I don't see them on his store currently but you can always ask.
I am still worried about it hitting the pan - there is a lot of info here -
https://www.corvetteforum.com/forums...ts-issues.html
And it also links to another discussion - C5 & C6 are the same mounts and same Oil Pan issue. Some say don't worry, some refuse to let it hit just on the principal of it. I'm still undecided and I don't see the point in the cradle spacer. That just raises the body and if you lower the engine then why not just let it all stock?
My original question was about adding stress to the pan and causing a leak or cracking it. Seems that it only touches a small part of the spring (about 1") so it's not fully SLAMMED up against the pan, just the edge where I would think it is very strong.
I Hope this helps you. But if you have a choice... Listen to RonSS before me.

Here's proof that it CAN be done but after looking at the pic I don't see interference where the spring is in relation to the pan. I'll have to look closer - I do know that it IS hitting something, somewhere. the cadle might be down and a bit forward when I took the pic.

 

Nice so yours are custom 3/8" lowered engine mounts? The other solid delrin and billet aluminum ones they sell are stock height correct? I wouldn't want the engine any lower to the spring then it already is.

 

MIne are 2.5" - when I started this I asked here about stock height. Was told 2.5" was 3/8 less so I got that. I did not have anything in my hand to compare to. It seems now that 2.5 may be a little less (or more) than 3/8". I can always add a spacer under it.
I'll get one out and measure it. They are not tight yet - simple to jack the engine for a minute and yank one out. Thru bolt is nice for that! OEM... Not so nice.

 

so just jack the engine up one side at a time or with both nuts removed and they should just slide right out? Does the cradle also need to be lowered to the bottom of their studs to remove the factory and slide in the aftermarket solid mounts. Most solid mounts are stock rubber height if not slightly taller? Someone put the hawks motorsports solid mounts on an 04 gto but that was while putting the engine in so it was alot easier. I didn't see if the mounts were the same height.

 

I cannot answer that as I lowered cradle / raised engine. I think that if you do NOT lower cradle you can slip them out if you remove the 'L' shaped bracket from the engine block. Not sure on that though - did you read the link I posted prior? I think it's covered there or maybe someone else can jump in?
Me, I would not solid mount anything that my wife might ride in - unless I wanted to keep her out of it.

 

Yes it does. Hinson 2nd set. The first set melted. I wrapped this set.
Wish I’d have known about the alternative you used.