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11-11-2003, 05:11 PM
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tri five engine swap
I am trying to put a 454 in a 55 chevy that had the 235. I have the new mounts that are for the 454 but am not quite sure of where to place them. The diagram given in the instructions was horrible. The mounts are the kind that are to either be bolted or welded on. Anyone who has had any experience with this I would appreciate it very much.
Brad 
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11-11-2003, 07:36 PM
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It's been years since I installed a big block in a tri-five but are you using the stock front motor mounts or are you welding in side mounts? If you're using the stock mounts, you'll need to use the most forward holes which is for the stock 6 cyl position. If you're going to weld new side mounts, then you'll have to set your engine and transmission in place, then weld the side mounts in. BTW ensure you'll have enough clearance for an HEI distibutor.
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11-12-2003, 11:13 AM
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Thank you for your input. I will not be using an HEI. I got an electronic distributor from MSD that is the same size as a regular points distributor. I have the side mounts that have to be welded on. The difficult part is that I have the body off the frame so I don't know how far forward or back to mount it. I figure that the mounts will have to fit pretty tight next to the frame so I would bring it through the frame rails to the point that it fits just right. Let me know if this sounds like it will work. Thank you again for that response.
Brad
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11-12-2003, 01:29 PM
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If you still have the stock front mounts, install them on the engine. Then place the engine in place. At this point, you'll have the stock engine position thus you can attach the side mounts and weld them in place. At this point, you could also bolt or weld the rear cross member being engine and transmission will be in place. Good luck.
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11-12-2003, 01:40 PM
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Brad, do you have any pictures of what you are doing?
I'd be interested to know how the x-member and suspension is setup on your car. I have a 57 truck that I wanted to drop a 454 into, couldn't pull up much information on doing this... BUT, I've been told that the cars and trucks are very similar. pictures please man please! lol.
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11-12-2003, 02:57 PM
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This is the closest picture I have right now. If you need a better angle it is going to be awhile before I can get it, the car is in Redding and I live in Sacramento for school (the distance is apprx. 3hrs away) so I get up there every now and then to work on it which gives me plenty of time for planning. Sorry if this doesn't help much. This is the best angle I have got at the moment.
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11-13-2003, 10:14 AM
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well from what I can see it looks to be different from my setup,
If you get a chance to shoot some more pics, I'd like to see them good luck.
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11-13-2003, 01:38 PM
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if u have the side mounts with the holes drilled in the plates the rearward holes on the top of the frame rail should go where there is a rivet in the frame. grind down the rivet head place the mount and weld those bad boys in very securely. i had one tear loose and with a solid throttle linkage bout plowed my 55 into my garage!
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11-13-2003, 03:56 PM
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Thanks Timrocket72,
I remember looking at those rivets as a point to mount the mounts. This confirms one of my thoughts, thank you. I'll make sure they are welding in good then.  glad to hear you didn't wreck into your garage.
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