Quote:
Originally Posted by MDPotter
It looks like these worked well for you? I have a 68 C15 and I want to reuse the stock perches (look just like yours-see top picture) but it seems like most of the LS motor mount plates are made for the other type of mount which has a thru-bolt (see bottom picture) rather than the bolt through the back of the motor mount like mine (top picture). I'm told that the 3-bolt pattern is different between the two style mounts too. Do you have the style like mine (top picture)?
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The 3 bolt part is the part that actually mounts to the LS engine. That bolt pattern will remain the same no matter which mounting style you use. The single through bolt simply attaches to a certain type of frame mount or plate that goes to the cross member. Its just the attachment point style that has to match which frame mounts you have.