K
B Series Interchange Guide
nytrdr24
+1y
on the tranny, i think the tail section on the rx-7 trannys puts the shifter
in the wrong place, and it might also have a different size yolk for the uni-joints......not sure tho as what i know on it is from mazdatrucking.com and it didn't elaborate........it just told about the bellhousing.
as for the valves the ones from the 626 are 8mm stems, but same head dia, and length, and ours are like 7.35mm stem dia. the only prob with this is the guides for the 626 are diff outer dia & the inner dia is for the 8mm stems, so they would have to be machined on the outside to fit into our heads....& our guides are too small internally for those valves unless that is machined as well for proper fit.
midnightmike,
i don't think he was saying that the disc would fit, but that you had to get the diff from an rx-7 of that year model w/disc brakes to fit in our axles...
limequat
+1y
Right on. Gear ratio is 3.909, though many gearsets interchange.
midnightmike
+1y
oops i didnt read the post properly
fanninator
+1y
for lazy people who dont wana bring up another page haha this is straight from mazdatrucking.com
Parts Interchange List
Engine Block:
The B2200 uses a cylinder block that is designated by Mazda as the F2. This block belongs to a series of F class engines including the closely related FE and the FE3. Other cars that use the F2 engine are the 88-92 2.2L 626, MX6, and Ford Probe. As far as I know all F class blocks have the same engine mounts.
Crankshaft:
All of the F2 blocks use the same crank therefore the same balance and any parts that bolt to it will interchange between vehicles. This crank includes the cars mentioned above. Crankshafts from the FE and FE3 can be used as well with modification of the internals. The cranks from the FE and FE3 have different balances and strokes so you will need the entire rotating assembly and new rods to adjust for the stroke. For those who know of the Kia motor using the B2000 FE block the crank is swappable but the flywheel and harmonic balancer from the KIA MUST be used.
Flywheels:
Being since the cranks are the same all of the flywheels for the F2 cranks are interchangable. I do not know if they differ any between the cars and the trucks. The car flywheels weigh 29 lbs, the truck is either the same weight or probably heavier. And of course being since all the flywheels interchange all aftermarket flywheels will interchange too, including lightweight flywheels such as the 9 lb flywheel from Fidanza.
Crank pulleys:
Since it does bolt to the F2 crank the crank pulleys from the cars above will also interchange. Because the belts on this pulley are different you will need the alternator belt and pulley with the lower alternator bracked. Please see 12v Pulley The aluminum underdrive pulleys made for the cars will interchange the same as the stock pulleys but it is highly unadvised that you use them. The crank pulley is known as a harmonic balancer it is called this because:
1) it is balanced for the crank.
2) It is designed with a certain weight to absorb vibrations in the crank.
3) They have a layer of rubber sandwhitched between two layers of the steel pulley that dampens the vibrations.
The big don't dos with crank pulleys are:
1) Never use a solid (no rubber dampener) pulley, it will not dampen the vibration.
2) Do not use a lighter pulley than what is designed from the factory if it is lighter it will not absorb the vibration in the crank. Alluminum Underdrive pulleys violate both of these and are known to reduce the life of the crank.
Exhaust Manifolds:
The exhaust manifolds between the 88-93 B2200/2000 should interchange. Also the exhaust manifold form the F2T engine (Turbo F2) used in the turbo 88-92 626, MX6, Ford Probe. This makes an easy option to turbo your truck if you don't want to have a custom manifold made.
Cylinder Heads:
There is a fairly wide variety of interchangable cylinder heads that fit the F2 all of the F2 cylinder heads are interchangable but the B2200 is the only one that is 8 valve. All of the other F2 blocks in the cars use a 12 valve head. Although this head is interchangable there are a couple conflicts.
1. The distributor comes out of the back of the cylinder head and will interfere with the firewall when putting it the truck.
2. The intake, the truck intake will not bolt up and the 12v intake has a side mounted throttle body, this puts the throttle body up against the firewall and that isn't even inluding the intake or filter.
3. Fuel injection you will have to have the injectors, fuel rails, fuel system, and wiring harness with all sensors and the computer.
The FE cylinder head from the B2000 will interchange as well as the 2.0L FE 626. There are rumors that the gaskets between these models are different and that if you use the wrong one you will cause an oil starvation problem this is FALSE. Both head gaskets for the B2200 and B2000 are completly compatable between eachother and any differences, if any, should have practically no effect on anything. Both of these engines do have an oil restrictor press fit into the block which regulates the amount of oil reaching the valvetrain, this is also why the copper ring in the head gasket cannot restrict oil since the ring must be larger than the machined area for the pressed in restrictor. This restrictor may be different between the B2000 and B2200 since the earlier B2000s had mechanical rocker arms which require less oil. This may mean that putting hydraulic rocker arms on a B2000 that had mechanical on it might cause an oil starvation problem up top. On the other side putting mechanical arms in an engine with hydraulic may cause
Parts Interchange List
Engine Block:
The B2200 uses a cylinder block that is designated by Mazda as the F2. This block belongs to a series of F class engines including the closely related FE and the FE3. Other cars that use the F2 engine are the 88-92 2.2L 626, MX6, and Ford Probe. As far as I know all F class blocks have the same engine mounts.
Crankshaft:
All of the F2 blocks use the same crank therefore the same balance and any parts that bolt to it will interchange between vehicles. This crank includes the cars mentioned above. Crankshafts from the FE and FE3 can be used as well with modification of the internals. The cranks from the FE and FE3 have different balances and strokes so you will need the entire rotating assembly and new rods to adjust for the stroke. For those who know of the Kia motor using the B2000 FE block the crank is swappable but the flywheel and harmonic balancer from the KIA MUST be used.
Flywheels:
Being since the cranks are the same all of the flywheels for the F2 cranks are interchangable. I do not know if they differ any between the cars and the trucks. The car flywheels weigh 29 lbs, the truck is either the same weight or probably heavier. And of course being since all the flywheels interchange all aftermarket flywheels will interchange too, including lightweight flywheels such as the 9 lb flywheel from Fidanza.
Crank pulleys:
Since it does bolt to the F2 crank the crank pulleys from the cars above will also interchange. Because the belts on this pulley are different you will need the alternator belt and pulley with the lower alternator bracked. Please see 12v Pulley The aluminum underdrive pulleys made for the cars will interchange the same as the stock pulleys but it is highly unadvised that you use them. The crank pulley is known as a harmonic balancer it is called this because:
1) it is balanced for the crank.
2) It is designed with a certain weight to absorb vibrations in the crank.
3) They have a layer of rubber sandwhitched between two layers of the steel pulley that dampens the vibrations.
The big don't dos with crank pulleys are:
1) Never use a solid (no rubber dampener) pulley, it will not dampen the vibration.
2) Do not use a lighter pulley than what is designed from the factory if it is lighter it will not absorb the vibration in the crank. Alluminum Underdrive pulleys violate both of these and are known to reduce the life of the crank.
Exhaust Manifolds:
The exhaust manifolds between the 88-93 B2200/2000 should interchange. Also the exhaust manifold form the F2T engine (Turbo F2) used in the turbo 88-92 626, MX6, Ford Probe. This makes an easy option to turbo your truck if you don't want to have a custom manifold made.
Cylinder Heads:
There is a fairly wide variety of interchangable cylinder heads that fit the F2 all of the F2 cylinder heads are interchangable but the B2200 is the only one that is 8 valve. All of the other F2 blocks in the cars use a 12 valve head. Although this head is interchangable there are a couple conflicts.
1. The distributor comes out of the back of the cylinder head and will interfere with the firewall when putting it the truck.
2. The intake, the truck intake will not bolt up and the 12v intake has a side mounted throttle body, this puts the throttle body up against the firewall and that isn't even inluding the intake or filter.
3. Fuel injection you will have to have the injectors, fuel rails, fuel system, and wiring harness with all sensors and the computer.
The FE cylinder head from the B2000 will interchange as well as the 2.0L FE 626. There are rumors that the gaskets between these models are different and that if you use the wrong one you will cause an oil starvation problem this is FALSE. Both head gaskets for the B2200 and B2000 are completly compatable between eachother and any differences, if any, should have practically no effect on anything. Both of these engines do have an oil restrictor press fit into the block which regulates the amount of oil reaching the valvetrain, this is also why the copper ring in the head gasket cannot restrict oil since the ring must be larger than the machined area for the pressed in restrictor. This restrictor may be different between the B2000 and B2200 since the earlier B2000s had mechanical rocker arms which require less oil. This may mean that putting hydraulic rocker arms on a B2000 that had mechanical on it might cause an oil starvation problem up top. On the other side putting mechanical arms in an engine with hydraulic may cause
brain
+1y
so i was lookin to lower the gear ratio of my rear end. Would the rx7 LSD third members really fit even if they were independant suspension, because i believe the only other vehicles that used the same 7.5" with small axles on the B2200 was the B2000 and early sportage. But i really dondt know.
What about changing out the mazda ring and pinion gears? Someone's has the ring and pinion part number posted on their site for some 4.10s and was curious if i could just swap those in my existing diffy and call it a day, just for now.
What about changing out the mazda ring and pinion gears? Someone's has the ring and pinion part number posted on their site for some 4.10s and was curious if i could just swap those in my existing diffy and call it a day, just for now.
limequat
+1y
Yeah, the entire 84-85 Rx7 differential will bolt in. You can also get a variety of ring and pinions. If it's just the steep ratio you're after, I'd just get the 4.44 from a 4x4.
See here
and
for more information.
As a point of clarification, the ring gear is about 7.2" normally referred to a 7" ring gear. We get the larger axle shafts, and therefore can only swap 3rd members with 84+ cars. Earlier 3rd members can be used if you swap side gears. As I understand it 86+ n/a RX7 diffs will work if you shorten your driveshaft.
slammed83mazda
+1y
what all is interchangeable from the 83-93 mazdas
f n lo
+1y
what steering wheels are interchangable for the mazdas??
limequat
+1y
Good question...I'd bet just about all of them. Steering column splines are one of those things that almost never change. I have a 86 RX7 wheel currently.
lucky13
+1y
could you just replace the whole axle and everyting from an rx-7?