Every part for a boosted D16, in the order you'll fit it.
Start at the block, then studs and the rotating assembly, and work out from there. Every part here is listed for the Honda D16 and sold on epoxy54.com.
Customer Honda EK build
Block reinforcement
The D16 is an open-deck block. EPOXY54 fills the top 3/4" of the water jacket for closed-deck strength without machining or sleeves, and coolant still flows underneath. Do it first. It's block insurance for everything after.
- EPOXY54 block epoxy kitPick Inline 4 and Partial Fill. 21,000 psi compressive strength, 1:1 thermal expansion with aluminum.
- EPOXY54 Install Kit5/32" drill bit, install bottle and stir stick.
How it's done: Installation guide · Fill volume guide
Head studs
ARP studs clamp the head harder than factory bolts. The kit changes with the model year, so match it to your car.
Pistons and rods
75.0 mm is the stock D16 bore. CP forged pistons are listed by engine code. Dished turbo pistons lower compression for boost; forged rods replace the weak link.
- Turbo pistons, 75.0 mm-14cc dish, stock bore.
- Turbo pistons, 75.5 mmFor a 0.5 mm overbore.
- Forged pistons, D16Z6, 75.0 mm9.0:1, with rings. 1992–95.
- Forged pistons, D16Y8, 75.0 mm9.0:1, with rings. 1996–2000 EX.
- Forged pistons, D16Y7, 75.0 mm9.0:1, with rings. 1996–2000 CX, DX, LX.
- H-Beam rods, set of 4All D16 and ZC.
- Extreme Duty H-Beam rodsFor big-boost builds.
Bearings
Fresh rod and main bearings are cheap insurance. Measure and pick the size.
Head gasket and valvetrain
An MLS head gasket seals under boost. Check your bore before you pick the size.
Fuel
Size injectors for your power target and fuel.
Cooling
More boost means more heat. A thicker aluminum radiator keeps temps in check.
Clutch and mounts
Hold the torque and keep the engine planted.
See it in real builds
Honda builds running EPOXY54, including the 904 WHP H22 EK, are on our customer builds page. Questions about your combo? Call (604) 809-7398 or email support@epoxy54.com.
Shop all Honda D16 parts