I am mounting my 8BA in a boxed 34 frame. I have the original style mounts but it will require picking the motor up 1/2 " further and I already have height issues. I built bolt in motor mounts from 3/8" stainless so I could mount the motor a bit lower in the frame and still drop the engine and trans out the bottom of the car for ease of dis***embly. Lowering those stainless mounts all the way to the bottom of the rail still is 1/2" too tall. I already have 3 97's without air cleaners or bug screens sticking above the hood line thanks to a 471 and another half inch is going to look like ***. I have searched our site for ideas and read about using hockey pucks for mounts. A standard NHL puck is 3" diameter by 1" thick, 1/2" shorter than standard mount pads. If I use them, how do I use them? Do I need the metal cup (I read that I do not), do I need one on top and one on the bottom? Or what do I use on the bottom of the stainless mount? I read 1/2" bolt is recommended, I need ***istance from the experts. Can one of you tell me how you mounted your motor using these things? This is where I need it sit.
Next generation, but I have used both the std. front Chevy '55-57 rubber mounts, as well as the C2 vette rear spring 'cushions' (in SBC front mount applications) believe either are less height than a hockey puck.
I would for sure use the bottom cup and on top, a washer as big in diameter as the motor mount. Anything less will kill the rubber biscuit. I have a couple used originals that measure 1 1/8 including the cup and the washer.
I was thinking of using hockey pucks the are hard as a rock, way hard than urethane. It was fun watching the people faces in the sporting goods store when I told what I was up to.
That makes a lot of sense to use washers on top, I didn't think it would have to be the same diameter but that is why I asked. Why the lower cup? Is it to locate the mount so it doesn't move? What would you do below? I am checking on the tri 5 mounts and the vette spring mounts too, hard to get dimensions on line. Ill call a few shops after the holiday.
I saw this in a thread from Rustybucket, cool idea, but what was used below the steel mount? And I just saw I typed Flayhead in the subject line...I should take off my gloves when I type.
hockey pucks won't last. people tried using them as body lifts on 4x4's back in the 80's. they soon broke apart. it was such a dangerous act that all the magazines soon got on board in trying to disuade their readers from using them for such purpose. can you machine some urethane material on a lathe to get the height you're looking for? oh, and keep your stick on the ice.
hockey pucks are vulcanized rubber. like anything that's vulcanized rubber they will dry out over time.
The small rubber goes below the steel mount the cup and large rubber plus washer go above the steel mount.
I used cut down hockey pucks for the body mounts in my RPU. They will be fine. My buddy has his 27 T body sitting on hockey pucks cut down in diameter and has been using them for 20 years with no issues. They may not stand up to an engines weight, but used in the right place they are good.
An engine is just a big air compressor actually so using that logic I should be fine. The urethane idea has merit, I might do some checking around for a high density urethane material I can machine to fit, I might even save another 1/4" that way. If I use the steel cup the 1" puck will only save me 1/4" in overall height. Maybe I'm making more out of this than I ought (that's what my wife says...a lot). Hell the original mounts might compress that much with the weight of the flatty. Great input as always team. Thank you.
That is what I use most of the time. ^^^^^ another avenue but probably too late for his build it transmission bellhousing mounts from a Chevy truck, they are thin but rectangular.
Hey Dumprat,,,READ the opening statment from OP... but speaking of hockey pucks...I can send you a couple of my wifes buscuits,,nothing can destroy them and gravy dont help one bit..
Sorry. The pic shows homemade mounts. Why the hell wouldn't you just use some 1/2" stainless for a spacer? Hockey pucks are for hockey.
Out of touch there for a bit, sorry. It is my first flathead, so my knowledge is nil and am reliant on you guys. so to catch up; 1. biscuits and gravy...ymmm, your wives sound a bit course but I have found gravy cures all ills. 2. I have original mounts but I have a clearance issue and am trying to drop the motor 1/2 ". 3. I am running a blown 49 merc 8BA, It should produce 360+ HP according to the "formula" Joe Abbin suggested and I followed it down the to the last detail. Would you still suggest solid mounts? I can make those easily but I hadn't considered it...until now. That would solve me dilemma. 4. I'm from Vancouver, USA, we don't play hockey...aye.
would not suggest solid mounts unless its a drag car only since you need to make your mounts use standard flat biscuits and build your mounts to suit
I agree that hard mounts will not be good for a street car.I'm more concerned about getting that oil pan too close to the ground. You may consider building a Hurst style bolt in cradle mount that will bolt in to frame side mounts so you can use full thickness bisquits and still be able to drop the engine out from below. Silent Rick's idea may be the best;turn down the appropriate size cushion from urethane. It will allow you to use the mounts you've already built, though I'd try bolting everything together with stock mounts to see how much they compress and see if you can live with the engine height vs. oil pan clearance.
I always heard of people using hockey pucks, but where they're so hard ( ask my right eye) wouldn't they defeat the purpose ; breaking a solid connection for vibration dampening? ( Always learning - call me dumb, but don't call me late for dinner).
They are harder but not as hard as a solid mount obviously, I had the ordinary flathead mounts in mine but the squished terribly under the weight of a blown big block, I then changed to solid mounts which I hated on a street driven car, then I tried pucks and they work great and still isolate any vibes. I would say mine are on par with a poly mount.
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