Tim McCreary

What would a 1993 13BT-REW short block blown core be worth. No intake/exhaust manifolds, accessories, etc.
The engine is for an Automatic, had just under 80K, and died in a parking lot after work (would not start). When removed (after ATF treatment), carbon deposits were found in the exhaust port. Rear had no compression, front rotor had compression.

Any ideas what it would be worth?

I know Mazda wants about 750-1000 extra without a core when getting a rebuilt motor.

Ballpark figures would be appreciated. (What would you pay for one and think it was a reasonably good deal for what you are getting?)

Thanks,
Tim

ziftar

iTrader: (1)

I would take a stab and say that most people won't be looking for Auto. Therefore around $400. Just a guess.

Rix7

I'm getting a $1K return on my old core, but it is still in running condition and never 'blew up.' So, you should figure less than $1K and more than the $400 for an automatic. There's a ballpark figure for ya.

highspeed101

rix7: where are you getting a grand return for your core?

Tim McCreary

Last I checked, Mazda required a core or $750 core charge. Other people have told me that the core charge has increased to $1000 just recently when buying a reman from Mazda Dealers.

Thanks everyone for the replies. If anyone else has anything to add, please post.

Tim

Call 911

The core charge has nothing to do with if it runs or not. The cores can not be in pieces or taking apart and put back together. Cores can be anywhere from 600-1000 depending on where you get your engine. I gave 600 to keep my core as it only had 7k on it and still ran. Has a blown side seal though. Before I give any running motor in for a core charge, I would swap(maybe even make some money) with someone who could use it for a good rebuild in exchange for there blown motor. Aint no reason to give up a running motor when you can swap it and give a blown motor as the core.
Tim my advise is this Find someone who would like to keep there old motor and sell them yours for 200 less than the core charge. That way they save money and you make money. Your not going to be able to go to mazda or anywhere else and get them to give you the core refund for it.

rxrotary2_7

i think you missed. it would not be hard to change an "auto's" core to a "standard" core. that would not deter me from buying a core at all. a block is a block is a block.

i would say on the street...no more than $600.
i also heard that mazda upped the price on cores to $1k. last time i checked it was $750...

Tim McCreary

Actually, if you need a manual engine from Mazda, the core must be a manual. Auto engines can mount a manual tranny, but not vice versa. I am just trying to figure out whether to go J-Spec, or reman.

If I go J-Spec, The core would be sold to defer some of the costs.

Tim

PS Thanks for the advice and ballpark. I personally was figuring no more than $600 myself. That would all depend on the internals condition. Since Mazda wont take a disassembled motor, It would be difficult to determine unless you were to rebuild the engine yourself.

Anybody know where the cheapest J-Spec 13BT-REW engines are?

Rix7

It was part of the deal I made with Carlos Gonzalez at GT Welding and High Perf. Mazdas (Ocala, FL). I would give him $4200 for a new motor and when he receives my old core, he'll send me $1K in return.

rxrotary2_7

ok let me start off by saying you have been deemed...
for your statement about MAZDA needing the same type of core in return. J/K, J/K...lol!


but in your original post you were asking what we would pay for a core
and like i said before a block is a block. what about a block would make it not able to be converted to either or? all you would have to do is change counter weights. the internals of the motor are not different. so like i said before auto or manual would not matter to ME (a person on the street...not a mazda dealer) i mean the block will be torn down for a rebuild anyway, what would be so hard to change it. i think you are thinking of an ecu. you can put a manual trany on an auto but not vise versa.

Tim McCreary

rxrotary2_7,

Apparently, you have been deemed master of the uninformed. The bare block includes the rear housing and the rear housings are different. They have different part numbers. If you call a rebuilder like Atkins or others, they will specifically ask you whether it is for an Auto or Manual, because they need to put the correct rear housing on when building them. It is not just the counterbalance like the previous models. Unlike 1st and 2nd generation engines, the 3rd generation engines are different for Manual and Auto. The starter mounts differently for an A/T versus a manual (manual mounts from rear of car in tranny bellhousing, A/T mounts from front of car on side of the rear housing.) You can mount a manual transmission to an engine that originally was an A/T, but not vice versa. The A/T will NOT bolt up to the M/T engine properly.

The idea is if I sell it to someone for a core for a Mazda Reman or other rebuilder, they will have to need an A/T motor, not a M/T motor. Mazda and others requires like exchange. Maybe this was not so obvious to some people. I would not want to sell the core this way and find out the person needed a M/T core

Tim