photos by: FJ Performance
We Take a Moment to Dig Up the Details on One of FJ’s Latest Performance Builds
Over the last few years, a small little tuning shop in the hills of Western Pennsylvania has been quickly growing into all-encompassing automotive facility that will not only include general bolt-on installations, but tuning, ground-up vehicle modifications and even complete engine builds.
Being primarily focused on LS and GEN-V LT engines, as well as dabbling in MazdaSpeed3, Ecotec and EcoBoost tuning, FJ Performance is one of the quickest-growing shops in the Midwest. Owned and operated by Fran Johns and Matt Neubauer, they wanted to showcase one of their latest builds, which was a C5 Z06, powered by a East Coast Supercharging-blown, forged 408 cubic-inch LS2.
Of course with plenty of boost and abuse in mind, only the best components will do, so FJ sourced some of the most impressive hardware available to racers today. When we spoke with Fran and Matt about the specifics, the forwarded us the complete build sheet and we passed them along to you below:
- New OEM LS2 Block
- Bores = Torque-plate honed to 4.0013″ (.0040″ piston to cyl)
- Katech Billet Caps Installed with Dowel Pins
- Block-Align Bored and Honed w/ARP Stud Kit to Nominal hsg. Diameter
- K-1 Technologies 4″ Stroker Crank; Billet Reluctor Ring Installed and TIG-Welded
- Crank Snout and Dampener Machined for Blower Drive Double Key
- Heads, OEM Used Castings; Valve Bowl Port Areas Hand Worked, and Valves and Seats Machined
- Decks Surfaced for Multi-Layer Steel (MLS) Gaskets RA13
- Stroker Rotating Assembly, Clearance Hand-Worked Into Block
- Rocker Arms Rebuilt w/Upgraded Trunion and Circlip Kit
- MBC .0024-.0025″ H-series Clevite Racing 3/4 grooved
- RBC .0017-.0019″ Coated Clevite Racing, Narrowed
- Thrust .005″ CLRNC
- Ring Gaps _ T .022 / 2nd .024/ Oil +.018″ Low Tension Gas-Nitrided Wiseco Piston to Cyl .0040″ Finished w/Torque Plates and ARP Stud Kit
- Piston to Valve = @ .110″ int, .090″ ex. CLRNC. Cam centerline @ 110.5
Rick Seitz is the owner and founder of GMEFI Magazine, and has a true love and passion for all vehicles. When he isn’t tuning, testing, or competing with the brand’s current crop of project vehicles, he’s busy tinkering and planning the next modifications for his own cars.