4 Piston Cylinder Heads

05/30/2026

Tyler Nelson sets quick time and brings home the Feature Win 🏆

05/29/2026

Built for the guys chasing more than dyno numbers. The 4P Pro TSX Head is engineered for serious airflow, high-RPM stability, and the kind of performance that wins races—not excuses. Proven on track, refined through competition, and designed to handle whatever you throw at it.

Records aren’t accidental. Neither is this head.

05/28/2026

Newen single point valve job precision.
Perfect seat geometry, unmatched consistency, and airflow that performs where it matters most.

05/28/2026

2.7L all motor drag race setup in for assembly today. This is a refresh for a good customer that has raced on this for some time brucestallings_epr

05/26/2026

Last day to save. We don’t run a sale for another 6 months. It’s a great way to get your spring build going for less. Heads, engines, cams…all of it

05/26/2026

K20C4 build for the Accord crowd. We will be making a video outlining the many similarities, and the many differences to the C1 Type R. Follow along as this one is built into a road race legend. 4P built block, 4P Type R oil pump conversion and 4P Accord specific baffle system, 4P CNC ported head and all the top end goods.

05/25/2026

Memorial Day Sale is live 🇺🇸

One of the few sales we run before Black Friday, so if you’ve been waiting to pick up parts for your next build, now’s the time.

Use code FREEDOM10 for 10% off now through May 26th.

We appreciate all who have served and hope everyone has a safe Memorial Day weekend. 🏁

4 Piston Racing is your one stop shop for High Performance Cylinder Heads. We eat, sleep, and breathe Cylinder Heads, and day after day continue to push for new developments.

05/23/2026

Car has some speed.

Tyler Nelson set Quick Time!! at Circle City Raceway with a new D2 midget track record of 13.022, followed closely by Kole Kirkman (13.118) and Zach Wigal (13.124).

05/22/2026

Our Memorial Day Sale is LIVE. Save 10% on the parts and components trusted in some of the fastest Honda builds in the world with code: FREEDOM10
🇺🇸 🇺🇸
Cylinder Heads. Cams. Valvetrain. Oil Systems. Internals. The good stuff.

May 20th–26th. Some exclusions apply. Don’t miss it.
🇺🇸 🇺🇸

05/21/2026

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Make sure your friends know they can buy the best stuff for less for the next few days. It’s rare.