good place in cali to get say a streetport 13b?

 

TTT

 

ttt

 

ttt

 

It's hard to find good 4-port 13B motors these days.
You might try to get a jap-spec 4-port 13B from an importer.

 

It's hard to find good 4-port 13B motors these days.
You might try to get a jap-spec 4-port 13B from an importer.

Sorry I'm not much help, but I figured a lame response was better than nothin'.

 

like a turbo II motor?

 

No, they had cars in Japan more recently that used old-style carbureted 4-port 13B motors with a few updates like nitrided side and center housings. They aren't street-ported, though. Anyway, there were engine importers that would get them from time to time at a pretty reasonable price.

 

Care to come over to vintagerotaries.com and share some pix of your truck?

 

Those are known as R5 13Bs.

 

Jeff, could you make something up that describes what are those R5 and 3B and stuff to know wich one are what ?
t'would be usefull

 

I've got a streetport (intake only) 13B from a 76 Cosmo. It NEEDS a rebuild. Let me know if interested. Otherwise, it goes in my car.

 

The stock side plates of a '74 REPU have 3B cast into them. The JDM 13Bs out of Luces and what-not are nitrided and have R5 cast into them in the same places.

R5 engines don't have an oil pressure sender hole under the oil filter.

 

acually i have two repu's . One is blue and a auto and one is white and a manuel . Im going to put a new motor in the blue auto one and change it over to a 5-speed and take the rear out of the 4-speed one and some more parts and sell that one. the blue one sits in my garage so kinda hard to take pics but i have some old ones and the white one is out back, its straights and everythings there but i dont need two trucks

 

pm me if you need help locating engines.

 

i have blocks runing engines but they smoke

 

rx for your 7 has a 4 port 13b for sale somewhere on this page. Price actually looks pretty decent at $2600.
http://rxforyour7.com/mazda%20rotary.htm#Ro

 

Tom do you have any idea where I can buy a set of those housings?



xp882, You dont have any use for a parts truck?

 

I have one of those motors and one with mazda wrote differnetly.. which would be better to rebuild?

FD3-- after i take the parts off it , i dont want it siting around wanna buy it?

 

I'd rebuild the newer six port if I were you. I would offer to buy your older 4port core if you like? Also I would love to buy your truck but I am on the East coast.

 

I have seen both rotor housings and side housings for the older 4-port 13b on ebay recently. I remember prices getting up there but not meeing reserve last I saw of them, maybe they arent sold and will be back up some time.

 

Thanks for the heads up, I'll keep an eye out. I usually search "repu" and "mazda rotary" Any other suggested searches?

 

Try "mazda 13B housings".

 

And I'm just starting a TII conversion on it. The motor is a street ported 13B (original motor) and a 4 sp trans from an early Rx7 (disclaimer: previous owner told me this).
My J-Spec (S5 I think but still trying to figure it out for sure) arrived yesterday and I need to figure out what parts I need to swap from the current engine to the new one. Front cover and oil pan are all I've figured so far. After that I was going to put the 13B and trans on ebay. If you're interested let me know. I'm in West Los Angeles.

 

it run? its a turbo motor? how much?