Machined in-house
Adapter plates, rails & sleeving cut in Virginia
Racing since 1995
Three decades of Honda & Acura engine development
Fast US shipping
Free over $500 — international orders by arrangement
Built to your target
Stage packages blueprinted to your power goal
Find your parts fast
Every part is tagged to the engine families it fits, so you only ever see hardware that bolts to your build.
The catalogue
Why InlinePRO
Our development cars are not showpieces. They are the test bench — the same head packages, rods and studs you buy, run at full boost until something gives. What survives becomes a product.
CNC machining, sleeving and blueprinting under one roof
Stage packages built around your target power, not a catalogue number
Core program keeps costs sane on head and short block builds
Fitment help from the people who machined the part
Signature series
Send us your core. We machine, blueprint and assemble it to the stage you pick, then ship it back ready to drop in.
Inline PRO H22 M-series M12 Xtreme Duty Head Stud Set
S2000 F20C F22C Signature Series Short Block Builds (core required)
K20 K24 Signature Series Short Block Builds (core required)
Just landed
Talk to a builder
Tell us the engine, the transmission and the power target. We will tell you exactly what you need — and what you do not.
