View Full Version : SB Motor mounts
Planet X
01-14-2004, 03:08 AM
These were the first thing (of use) that I ever made-smaw.
http://webpages.charter.net/julieray/motormount1.JPG http://webpages.charter.net/julieray/motormount.JPG
Scott S
01-15-2004, 02:46 AM
What do they go to?
Planet X
01-15-2004, 03:25 AM
Originally posted by Scott S
What do they go to?
Oops sorry Scott S, there I go making assumptions again:o
SB = small block. Chevy 350-400 v-8 to be more exact. Not shown are two brackets that would bolt/weld to a vehicles frame rails. The Triangle pattern shown bolts up to the motors block mounting bosses. The large 'pipe' part holds Ford f-250 spring bushings which are used to cushion the motor. Typically you will see donut style motor mount bushings but these are flawed in the fact that they rely on bolt tension in a 'single' shear fashion to restrain motor movement. With this style your bolt is in the optimum 'double shear ' configuration.
chumly2071
01-15-2004, 10:52 AM
can you give any specs on the f250 bushings (id/od and overall length)?
I've seen similar done with Jeep YJ spring bushings, but they can get pricey kinda quick. guess my point is I'm looking for an inexpensive bushing to use in this type of application.... motor mounts, cage mounts, trans crossmember, etc for the project I posted about on my Jeep frame.
cool mounts, BTW......
Chad-
Planet X
01-15-2004, 11:57 AM
Originally posted by chumly2071
can you give any specs on the f250 bushings (id/od and overall length)?
I've seen similar done with Jeep YJ spring bushings, but they can get pricey kinda quick. guess my point is I'm looking for an inexpensive bushing to use in this type of application.... motor mounts, cage mounts, trans crossmember, etc for the project I posted about on my Jeep frame.
cool mounts, BTW......
Chad-
The ford bushings are a 55mm od. it was damn hard finding d.o.m tubing with the right id.
I use polyurathane bushings from this place- they are quick & prices are on par w/market. Have a look see around here I am sure you can find something usefull.
Bushing source (http://www.suspension.com/4-bar.htm)
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