v8dats Posted July 20, 2001 Share Posted July 20, 2001 anybody think about using motor pltes for a v8 conversion?will it twist the car to hell?what if the chassis was reinforced?you would have a better selection for headers! Quote Link to comment Share on other sites More sharing options...
blueovalz Posted July 20, 2001 Share Posted July 20, 2001 I use plates front and back. A street version of the front plate resting on the OEM crossmember towers worked quite well (did not use the rear plate until I raced the car). It clears the way for lots of room on the side of the block. Quote Link to comment Share on other sites More sharing options...
DavyZ Posted July 20, 2001 Share Posted July 20, 2001 Terry, I have read that using solid mounts in general is not too good for the street due to the vibrations which can cause harm to the car and to the motor. I wanted to get your opinion on this because you have been using this setup for a long time, correct? Davy Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 1, 2001 Share Posted August 1, 2001 i was really wnating to do motor plates with my 350 but I don't know if my eng. will set far enough back to mount the plate to the crossmember. my plan was to make a motor plate out of steel that used the same bolt holes as the crossmember. I figured that if the crossmember can hold up to a plate, than using the same mounting holes would put less torque to the chassi. ??????????? jake Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 1, 2001 Share Posted August 1, 2001 Not so sure it would put less to the chassis that way, but I'd have to see exactly how you were going to do it. Currently by using the Datsun engine mounts on the crossmember the weight transfers right through the mount/crossmember and A arms. The body then rest on top of the crossmember as well as the top strut mounts. At least thats how I think it looks. If thats the case it would transfer probably about the same torque through the chassis if your using the same attachment points... IMHO. Regards, Lone Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 8, 2001 Share Posted August 8, 2001 yeaH... if you were to picture a typical motor plate as you would see it from the front.....usually you will see a bolt at the bottom corners that go fron to rear through the mount tab on the frame. I wanted to make ti so that the plate has two bolts on each side that are the vertical ones which the crossmember are attached with. MY thinking was this: if all the twist is held down by the original bolting holes with a JTR kit, the mounts to the crossmember are about 20-24 inches apart right?....well if you were to use a motorplate that bolts with the same bolts that the crossmembers use, the attaching points would be more like 30 inches or whatever the distance is from rail to rail. Jake Quote Link to comment Share on other sites More sharing options...
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