75&78Z Posted April 7, 2008 Share Posted April 7, 2008 We (son and I) are getting ready to make some motor mounts to adapt an rb25 w/rb20 oil pan to our 75 s-30. We are making our own mounts and have figured out the front to back/left to right spacing, but are unsure of what kind of minimum clearance we need between the oil pan and rack. What kind of clearances are are you guys seeing whith the motor installed (weight of motor on the mounts)? We were thinking .5 to.75 inches would be sufficiant but will defer to the experianced and the experts. We know there are different motor mounts out there (Z31, Rick W, Mickinney,etc) which is why we are curious as to what you all are seeing and if there are any issues with a particulare setup/clearance. thanks! Quote Link to comment Share on other sites More sharing options...
BirdmanZ Posted April 7, 2008 Share Posted April 7, 2008 I've got about an inch. Quote Link to comment Share on other sites More sharing options...
stony Posted April 9, 2008 Share Posted April 9, 2008 I had mine solid mounted and had about an 1/4 inch Quote Link to comment Share on other sites More sharing options...
75&78Z Posted April 9, 2008 Author Share Posted April 9, 2008 Thanks for the info. I think we'll shoot for .75 to 1.00 inch since we are planning on using either a rubber or more likely a poly isolator. BirdmanZ what motor mounts and isolator setup are you running? Quote Link to comment Share on other sites More sharing options...
BirdmanZ Posted April 9, 2008 Share Posted April 9, 2008 Stock Isolators, Castlemaine Rod Shop mounts. Quote Link to comment Share on other sites More sharing options...
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