For increased driving comfort and vehicle power, Chevy transmission swap is a smart move, as their transmissions are interchangeable with numerous other vehicles. It’s possible to interchange Chevy transmission units with Honda, Buick Regal, and Pontiac. The swap only works if their components are friendly.
Transmission co-function with other torque or power-producing units. Therefore, it is essential to match their specifications. Or else even if you are able to replace the parts, they will damage the vehicle gradually!
So, identify your perfect swap through the Chevy transmission interchangeable chart, where I’ve also shared some handy tips for successful interchanging. Ready to dive in?
Chevy Transmission Interchange Chart
As mentioned, the transmission needs to be compatible with the engine spec for the swap to provide performance benefits, especially engine displacement and type.
So, after extensive research, I’ve come up with the given chart made for Chevy transmission interchangeability:
|Chevy Trans Models
|1979-82 HONDA ACCORD 1.8L;
1981-85 HONDA CIVIC 1.3L 1.5L L4;
1981-85 HONDA CRX 1.3L 1.5L L4;
1980-82 HONDA PRELUDE 1.8L L4;
|1997 > BUICK REGAL GS4T65E;
1998 > OLDSMOBILE INTRIGUE 3.8L SUPERCHARGED;
1997 > PONTIAC BONNEVILLE 3.8L SUPERCHARGED;
1997 > PONTIAC GRAND PRIX 3.8L SUPERCHARGED;
1999 VOLVO S80 2.9L L6;
|1988-91 ISUZU TROOPER 2.6L L4 — 2.8L V6
|1976-78 HONDA ACCORD 1.6L 1.8L L4;
1973-80 HONDA CIVIC 1.2L — 1.5L L4;
1979 HONDA PRELUDE 1.8L L4;
Factors Affecting Interchangeability Chevy Transmission
Let me remind you that the interchangeability process is not a no-brainer! Hence, being meticulous about transmission compatibility is a must. And here are the factors that affect the whole interchangeability process:
Transmission requires an engine to transmit power to other units of the vehicle. Therefore, it needs to be friendly with the engine or the powertrain.
And the rule of thumb for determining their compatibility is bolt pattern and size. Sounds confusing? Well, let me explain.
Both of these power units have bolt patterns. If their patterns are the same, they can co-function with each other. Because this arrangement of bolts keeps these components secured with each other.
Also, if the transmission you want to swap has an engine with great displacement or larger cylinder volume, the other transmission should also have a large displacement. And the larger the cylindrical volume, the more power the transmission can supply!
Note that the engines should share the similar design and cam style. For example, if one powertrain has a single 2 lobes cam, the other must have a similar cam style.
Additionally, if one unit has a double with two lobes cam heads, the other vehicle should configure the same engine type. Thus, it ensures well–distributed power.
There are mainly three types of Chevy transmissions: hydra-matic, turbo-hydramatic, and electronically controlled models. These units function differently. So, make sure both the transmissions are of the same type. Only then their specs will match with each other.
If you replace the same types of transmission units, the vehicle will be able to identify the specs. This way, I guess you will not face problems turning the engine on and off.
Chevy manufacturers have manufactured numerous car models over the years. And they keep on updating the series’ specs as well.
So, it is a must for you to ensure both transmissions can align with the updated or old specifications of the vehicles. Then, the swap will work in your favor.
Common Issues May Arise When Interchanging Chevy Transmissions
Interchanging any transmission, including the Chevy ones, is not free of errors! Meaning it can either land successfully or you may end up damaging the vehicle!
So, if there is any inconvenience in the compatibility of the trans., the two most common issues I’ve gathered may occur while or after the replacement:
Indeed, there are varieties of transmissions that require lubricants with different features. This is the reason manufacturers recommend specific oil types for all transmissions.
And based on my observation, users often add the wrong type of fluid after the swap! Adding the wrong oil can cause the transmission to overheat.
In fact, it may also lead to wear and tear that cause an oil leak. The worst is the engine and transmission both can stop functioning due to the mismatch of fluid specs!
Not all Chevy transmission produces the same amount of power. And they require tires with specific air pressure levels so that the wheels can withstand and distribute the power.
If you forget to change the tire pressure according to the requirement of the replaced unit, it can probably cause drag and damage.
Moreover, you might not be able to handle the vehicle properly on account of the wrong air pressure in the wheels.
Tips for Successfully Interchanging Chevy Transmission
Chevy transmission swap can assist in your driving preferences and comfort only if you are familiar with the technical know-how!
And I can understand how much effort and time the whole process takes. So, to make this replacement safe and sound, let me share some handy tips:
- While choosing the transmission replacement, ensure to inspect it throughout. Go for the straight swap once you notice there is no wear and tear.
- Contact the manufacturers of the two swappable units to get updates on their new design and specs, if there are any.
- Feel free to start working after you have parked and secured the car on a flat surface.
- Take necessary support from a slider to roll under the vehicle within a snap! And it will save time as well.
- It is better if you detach the bolts, screws, and units under the hood before sliding under the car.
By referring to the Chevy transmission interchange chart, Chevy owners can choose their ideal fit. Without exploring the chart, you will be confused about the specs of power component specs required for the swap.
Based on the chart, you can choose transmission options that match the bell housing or bolt patterns, making and other specs.
I’d highly recommend getting your hands on the swappable units from authorized sellers. Or else I am afraid that the transmission can be of poor quality!
Transmission interchange chart Related articles:
Certification: BSc in Mechanical Engineering
Education: Mechanical engineer
Lives In: 539 W Commerce St, Dallas, TX 75208, USA
Rasel is an auto mechanic student and writer with over half a decade of experience in the automotive field. He has worked with top automotive brands such as Lexus, Quantum, and also owns two automotive blogs autocarneed.com and taxiwiz.com.