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Old 11-06-2007, 08:46 AM
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Converting a car engine to reverse rotation

What all do I need to convert a chevy 350 to reverse rotation? I know I need a crank due to oiling issues. And timing gears marine I think (does anybody know where I can get them). Is there anything elese I need to know.

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Old 11-06-2007, 08:54 AM
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Reverse rotation camshaft. Reverse rotation distributor gear. The distributor and oil pump turn the same way. The camshaft gear and distributor gear are different.
Some reverse rotation motors use a 2 gear gear drive instead of the timing chain and gear set and a conventional camshaft. Take your pick .

Reverse rotation water pump.
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Old 11-06-2007, 08:57 AM
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well?

Does anyone know where I can get a 2 gear timing set?
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Old 11-06-2007, 09:02 AM
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Why do you want it to run backwards? Marine application?
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Old 11-06-2007, 09:03 AM
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Quote:
Originally Posted by Ace McCloud
Does anyone know where I can get a 2 gear timing set?
I would call or email Isky Cams or Crower Cams about this.
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Old 11-06-2007, 09:10 AM
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well

I am going to mate a 350 to a th-325 4L but it needs to be mounted backwards for weight distribution and you cannot flip the diff because it moves the axles too high and one will hit a main cap. so I am thinking maybee I can make the engine turn backwards thus the car forwards.
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Old 11-06-2007, 09:21 AM
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Quote:
Originally Posted by Ace McCloud
I am going to mate a 350 to a th-325 4L but it needs to be mounted backwards for weight distribution and you cannot flip the diff because it moves the axles too high and one will hit a main cap. so I am thinking maybee I can make the engine turn backwards thus the car forwards.
Ok, put that refer rocket out.....
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Old 11-06-2007, 09:24 AM
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I was a johnson/evinrude mechanic for over 20 years. Inever worked on their inboard models but do remember seeing them in the service manuals. try checking out a local dealer an older one if possible. They may have some old manuals.If not let me know and I will go to my old place and get info for you.It definitly can and has been done ,but what about the converter and trans working backward?
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Old 11-06-2007, 09:27 AM
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well

the trans is chain driven so it is to my understanding that it can be done on this trans.
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Old 11-06-2007, 09:32 AM
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What are you building?
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Old 11-06-2007, 09:40 AM
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well

I allready built a fiero with the 350 and th325 4l in the back and was almost done until I realized the when I flipped the diff the axle hit the main cap.
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Old 11-06-2007, 01:25 PM
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The chain drive is after the torque converter. Not sure how the converter is going to like going backwards. I don't think it will work, but you might be able get one custom made. That means the transmission pump will be rotating backwards too.

When you flip the pumpkin, are you swapping axles side to side too? From looking at pictures, I thought the centerline of the axle shafts would be lower than original. Is the axle shaft hitting or the flange that the cv joint attaches to?
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Old 11-07-2007, 04:59 PM
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Pictures man I need Pictures
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Old 11-07-2007, 05:07 PM
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try these guys
http://members.tripod.com/~grannys/generalmotors.html
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Old 11-07-2007, 07:52 PM
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just get a trans that has 3/4 reverce gears and 1 forward gear. that auta do it.

you can thank me later
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