Innovative Mounts EK K Swap Billet Mounts EG Subframe

Innovative Mounts EK K Swap Billet Mounts EG Subframe

  • 92-95 EG or 94-01 DC2 subframe

  • Polyurethane bushing 75A, 85A, 95A

  • Fits K20A2, K20A3, K20Z1, K20Z3

  • Requires K-series manual transmission

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PRODUCT DETAILS

Innovative Mounts EK K Swap Billet Mounts EG Subframe

You already did the hard part. There is a 92-95 EG front subframe under your 96-00 EK, with the EG or DC2 steering rack and lower control arms to match, and a K20A2 sitting on an engine stand waiting for somewhere to bolt. These billet EK K swap mounts for the EG subframe are the set that finishes that job, and they are the same kit as the steel version with the housings machined from 6061 aluminum instead.

What It Is and Why It Works

Everything about this kit assumes the EG subframe. That choice is why people go through the trouble in the first place. Running the 92-95 EG or 94-01 DC2 subframe in an EK moves the engine slightly rearward, which lines the axles up better, opens up hood clearance (the difference you notice most on a tall K24), and leaves more room across the front for a proper radiator and fan setup. The mounts and sub brackets in this kit are cut to that geometry. Bolt them into a stock EK subframe and nothing lines up.

The mounts themselves work by deleting the fluid chamber in the OEM rubber mount and running a solid polyurethane bushing instead. On a stock car that fluid absorbs idle shake. On a K swapped EK it lets the engine rock under load, which shows up as wheel hop and a soft, delayed response when you get on it. Take the fluid out and the engine stays put.

Which also means it gets louder. Every durometer step transmits more engine noise and vibration into the chassis than the OEM rubber did, and Innovative Mounts says so directly in its own notes. This kit starts at 75A black, which covers roughly 250 to 400 horsepower and is already firmer than most people expect on a daily driven EK. The 85A grey is a 400 to 500 horsepower race bushing. The 95A red is effectively solid and should only go in a car that never sees a highway commute. There is no 60A street option on this part number, so if a quiet car matters more to you than throttle response, this is not the kit.

Specs

Brand Innovative Mounts
Manufacturer Part Number B90051 series
Material CNC machined 6061 billet aluminum
Bushing Polyurethane, no-tear design (per manufacturer)
Durometers Offered Here 75A, 85A, 95A
Kit Contents Complete mount set with sub brackets and hardware
Required Subframe 92-95 Civic (EG) or 94-01 Integra (DC2) front subframe
Engine Fitment K20A2, K20A3, K20Z1, K20Z3; K24 requires post mount bracket 103750
Transmission K-Series manual only
Listed Weight 25 lbs (per manufacturer)
Warranty Lifetime against manufacturer defects (per manufacturer)

Available Options

Durometer Power Range SKU Mfg Part No.
75A 250 to 400 hp INO-B90051-75A B90051-75A
85A 400 to 500 hp INO-B90051-85A B90051-85A
95A 500 hp and up INO-B90051-95A B90051-95A

Fitment

Year Make Model Trim Engine
1996-2000 Honda Civic (EK, EJ) CX, DX, EX, HX, LX K20 series with manual transmission
1998-2000 Honda Civic (EK, EJ) GX K20 series with manual transmission
1999 Honda Civic (EJ) Value Package K20 series with manual transmission
1999-2000 Honda Civic (EM1) Si K20 series with manual transmission

The chassis rows above are only half the story. This kit fits a 96-00 EK, EJ or EM1 Civic that has already been converted to the 92-95 EG (or 94-01 DC2) front subframe, including the rear crossmember, along with the matching steering rack and lower control arms. It also requires a K-Series manual transmission. Innovative Mounts lists engine coverage as K20A2, K20A3, K20Z1 and K20Z3. A K24 will physically work but needs the separate K24 timing belt post mount bracket, Innovative part 103750, which replaces the Honda 11910-PPA-000 CR-V post mount.

What to Know Before You Buy

The subframe question is the one that costs people money. If your EK still has its factory subframe, buy the EK subframe kit instead. Ordering the EG subframe version and finding out on install day is the most common mistake on this entire category, and once these mounts are bolted down and take bolt impressions they cannot be returned. Look under the car first. The EG crossmember is the visibly different one, and if you did not personally swap it, assume you have the EK.

Going to the EG subframe is not just a subframe. You need the EG or DC2 steering rack and the lower control arms that go with it, and if you want power steering you are into rack and pump plumbing on top of that. Plenty of EK builds go manual rack at this point precisely because the plumbing gets easier. Sort that out before the engine goes in, not after.

On bushing choice, pick the softest one that covers your power. A 75A on a naturally aspirated K20A2 street car is already firm enough that you will hear the engine through the shifter at idle, and 85A or 95A on a car you drive every day is the kind of decision people quietly reverse six months later. Innovative Mounts will change bushing hardness one level at no charge through its warranty process, so it is recoverable, but it is easier to get right the first time. If your build is boosted or you are pushing past 400 horsepower, the 85A is the honest answer.

Plan the rest of the swap alongside these. K swap axles for an EG or EK chassis, a shift linkage that clears the new engine position, and the K20 or K24 post mount bracket for your specific block are the parts most often ordered a week too late. Innovative also sells the mounts and the sub brackets separately under this same family, so if you already have brackets from a previous kit, ask before you buy the complete set.

Year Make Model Trim Engine
1996-2000 Honda Civic (EK, EJ) CX, DX, EX, HX, LX K20 series with manual transmission
1998-2000 Honda Civic (EK, EJ) GX K20 series with manual transmission
1999 Honda Civic (EJ) Value Package K20 series with manual transmission
1999-2000 Honda Civic (EM1) Si K20 series with manual transmission

The chassis rows above are only half the story. This kit fits a 96-00 EK, EJ or EM1 Civic that has already been converted to the 92-95 EG (or 94-01 DC2) front subframe, including the rear crossmember, along with the matching steering rack and lower control arms. It also requires a K-Series manual transmission. Innovative Mounts lists engine coverage as K20A2, K20A3, K20Z1 and K20Z3. A K24 will physically work but needs the separate K24 timing belt post mount bracket, Innovative part 103750, which replaces the Honda 11910-PPA-000 CR-V post mount.

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