stayontrack

4Piston - Pro 163 CNC Head $1800 w/ 37mm valves; claims CFM @ 376.6

Drag Cartel - PRO SERIES CNC Cylinder Heads $1949.00; claims CFM @ 400

Prayoonto Racing - K series Winners Circle all motor package $1,825.00 w/ valves; claims CFM @ well over 400

any feedback is welcome

2LEM1

iTrader: (1)

I've always trusted Larry

Honda K Series Heads

pogeeboy27

iTrader: (3)

The best will be the one that works with your setup. Don't get too hung up on the CFM numbers because more does not always mean better. Your setup and intended purpose will determine what head is correct for you. Typically the heads that flow 400 CFM and up are for all out drag racing; motors have high compression, stroked K24, high lift cams, etc.

GoldieWang

glad you posted this. looks like a reputable guy for a reasonable price.

JRCivic1

I have an Endyn modded head for my EM1 daily driver... the build will be completed this year. I hope it works very well.

Marky Mark

I'm also running an Endyn CNC head. Works great for my setup. Larry is a genius when it comes to this stuff. He doesn't believe in just CFM numbers. He believes in the way the engine accelerates through the powerband. His theory about not spending much time but a split second at the 9500rpm when the head is said to make 400+ CFM makes a lot of sense to me.

AZ_CIVIC

iTrader: (1)

I'm not a K-series guy but if I had to choose a head I would go with 4piston, out of the top 10 fastest Hondas in the country I think 5 or 6 of them are running 4piston heads.

I'm currently on a Performance CNC head and I am really happy with it, 5 years and $1200 bucks.