The P Racing 5 axis cylinder heads are used in the some of the fastest cars in the world. Over 10 years of R&D our cylinder heads have come a long way in the sport compact world. 

The Grassroots all motor cylinder head is designed to offer maximum flow for weekend drag racers or weekend warriors at minimum cost. with a 36mm valve it flows over 370 cfm at .600 lift and can make over 400whp with approriate supporting engine parts. Using a 36mm intake valve this allows the end user to have an easier time setting up their valve clearances for safe no worry operation with great power.  

1350 includes - CNC port, CNC intake and exhaust flange, CNC spec chamber, Race valve job, cleaning and assembly

If supertech valvetrain is selected this includes CNC valve locks, Viton valve seals and appropriate spring seat

Customer must supply PPA/PPL or PRB core for this head or inquire with us about providing one. 

K series Grassroots all motor package