I've got a 1991 honda civic hatch. its got a d15 1.5 liter motor with a 4 spd stick. I want to put a 5 spd in it. But i dont know what transmissions will work in it. will any tranny from a d series motor work with my motor? does it have to be a specific year?

 

If you want it to bolt right in, it needs to be from an 88 to 91. The later models have hydraulic clutch instead of a cable and a different motor mount on the end.

 

and does it have to be from a d series motor?

 

All 88 to 91s are D series. There were 3 engines, the CX 8 valve, the DX, LX etc. 16 valve non VTEC, and the Si VTEC. But the transmissions mount the same.

 

88-91 Si was non-VTEC... D16A6
There was no 88-91 CX, but there was an 8-valve engine in 88-91 and it came in the CRX HF.
There were also more than 3 engines... D15B1, D15B2, D15B3, D15B6, D16A6

I think you are confused with 92-95 Civics.



Anyway, OP if you want a 5-speed, you can use a transmission from any 88-91 Civic except for the 3-door STD trim level... it has a 4 speed transmission. It will fit too but you said you want a 5-speed.

The 88-91 Civic Si, CRX Si, and 90-91 Civic EX (D16A6) transmission is going to be the shortest geared and offer the best acceleration.

The others will be longer geared and should yield slightly better gas mileage.

 

Same situation, just got a '91 hf 4 speed Civic hatch and found a five speed in a '90 front wheel drive station wagon Civic. Can someone please let me know if there will be a problem with this swap? Does anyone know what gear ratio it might have. Would it have the ratio of a hf 5 speed or a dx 5 speed. Any help is appriciated. Thanks