if I was replacing the original 6 cylinder on a 1971 duster what would be my best streetable option ?

10

Asked by Jul 14, 2013 at 01:09 AM about the 1972 Plymouth Duster

Question type: Car Customization

8 Answers

109,905

Demon and Duster first two cars I owned. Loved them. What are you wanting to do with car? Upgrade to larger motor or restore back to its original glory?

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10

defiantly looking to add a small block, ( forgive my ignorance I have built nothing but Chevy's ) I am assuming you just change motor and transmission mounts to add a small block and bigger trans ? also would you need larger front springs ? I am not sure what motor is best for performance 340 or 360 ? or parts availability ? I am also assuming the heads are interchangeable ? the reason for all the questions is a neighbor has a nice looking 1971 Duster with rally wheels sporting a 6 cylinder, this economy has wiped me out so I thought I could buy it now for little and add the new running gear down the road if it is that simple thank you for your time Drew

109,905

I am the wrong one to be talking to if you doing that. That one has the original slant six in it if I am not mistaken. If mine I would not change it out. That motor will outlast anything that you could ever put in it. Sorry but I just one of those guys who likes to keep old cars as they were new. Although I have seen some with modified intakes to hold duel carbs, modified exhaust, and even one with a turbo modified to it. So there are some neat things that can be done to that tough little motor.

109,905

http://www.squidoo.com/slantsix

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Best Answer
109,905

http://www.jalopyjournal.com/forum/showthread.php? t=266175&showall=1

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109,905

Had not looked into these motors in years. But it seems there is a lot more you can do with them than I had mentioned. Consider building your slant six. I don't think you will be disappointed when someone peaks off under your hood and says "damn look what you have done to that slant six"

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10

Thanks Mark That certainly changed my thinking, a lot less work better gas milage and can still have fun, not a bad deal. Thank you

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109,905

Thanks glad I could help. There are so many neat things you can do and have a one of a kind when you are done. Remember to keep us informed on your progress and post some pics of her in your garage. Drive safe.

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