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good inline sixes


Dave1647545494

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ok so this 51 plymouth has an inline six flathead. putting a v-8 into an old car like this is usually the normal course of action, however to do that in this car you have to fabricate new inner fender wells for a wider motor. so I'm thinkin theres gotta be a few good inline sixes out there so help me out what kind of options do I have. any option s fine import or domestic power I'm easy. cross flow head is prefered but I'll research anything.

 

thanks

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I hear there is a lot that can be done with a slant 6, but I wouldn't know what. I think Tinman was telling me about it one day.

 

A 2JZ would be sweet, but not cheap. The 7M may be a better possibility for both price and availability, but they eat headgaskets, and nobody seems to have really pushed them past about 500 horse, so I don't know the limitations.

 

A boosted EFI ford 300 would be interesting, but I would hate to put a ford motor into a chrysler. It's just not right.

 

The old Datsun 280Z's had straight 6's in them, but I don't know a thing about them.

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2JZ gets my vote. if power isn't a big concern, the n/a motor (2JZ-GE) is easy to find. you can always boost it later...

 

a nissan RB would be amusing to say the least... smile.gif

 

BMW has some good inline sixes, but they aren't cheap. if you want big power, look elsewhere...

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Jeep.

 

Also, if you can get that turbo six out of Australia; you know, the one that makes more power than the 5.4 DOHC...Yeah...That'd be the one to have.

 

Marc, shutup. V6 is a waste. If you can't get a V8 in the fenderwells, why could you fit a V6? They're the same width.

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cross flow means it goes in one side and ou the other

 

like this intake----head----- exhuast

 

the other type is a down flow head

 

intake head

exhuast

 

both on the same side the downflow type head is less efficient thanks for the ideas I forgot about a jeep 4.0L it keeps it all chrysler too

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forgot about the Heep 4.0

People claim they are reliable, but I don't see how. They may keep running, but barely. I have never heard of them being used for a performance motor. They don't rev for shit, which is fine for the offroad world, where you need nothing but low end torque, but I don't think that it would be that much fun on the road. A little off the line torque, then it's done. Coupled with a major lack in aftermarket parts.

Oh, and they leak oil like no other

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I would go with the slant six also. Keep it in the Mopar family. I had a 79 Dodge Diplomat that had a Slant six "Super Six" great car and great power for a 6.

 

The 4.0L is a good engine. But as stated above, it may not work for your application. Maybe with some tuneing and a better transmission you may be able to open it up a little better.

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