Pay in 4 interest-free payments of $253.25 Learn more
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
4P Engines are built to WIN races and to keep running over and over
make the switch and let the results do the talking
We currently have a bolt-on DI system in development that will produce 550hp with no additional fuel source
4P Custom Exhaust Valves (8)
Available for K20 and K24
Ferrea Roller Rocker and Valve Spring Kit KT4038 - K20C1 Valve (Exhaust) 4P Engines are built toThe Ferrea Roller Rocker kit will eliminate the VTEC function on your exhaust cam, and replace the OEM intake rocker with the Ferrea rocker arm. The Ferrea valve spring kit uses a high quality PAC spring Made in the USA. It increases the seat pressure and open pressure to help control valve bounce and will allow safe operation up to and beyond 9000 rpm. This is especially critical in the event of a missed gear or mechanical over rev. We recommend this
US$ 94.00
US$ 10.99
US$ 165.00
US$ 40.00
US$ 28.00
US$ 165.00
