Exotic-metal55

FS , Just completed , brand new big vale race heads heads for M113K , E55, CLS55, CL55, S55, etc. $3900 and all reasonable offers will be considered. If you have headers, more boost and upgraded intake system, then these heads are your next best big power gain.

UPD worked with Ferrea many years ago to bring the custom big stainless valves to the M113K format. These high flow race heads are a huge upgrade for the stock and inconsistent factory valves and vale job, that contribute to rough idle and loss of power.




Few process pictures.

chinatownabc

any dyno sheets?

Exotic-metal55

About 30 to 40 people here have these big valve race custom heads on their high HP AMG`s and below is one of my dynos on my cl55. I made about 550 hp before the heads and most my after head dynos made 611 rwhp to 620 rwhp .

99lightning

I bet even a stock car would see 30 to 40hp gain. with no extra heat.

03svtkiller

Interesting 30-40whp with only these heads that's a crazy gain. I'm very interested but would like to hear from people who have them.

Exotic-metal55

Check with Drollins on this forum.

cnterline

Are cams and rocker arms included

Exotic-metal55

Rocker arms are included and cams can be if you need those.

211.070

Did you switch over to a beehive style spring set up? Do you have flow bench data for before, and after?

Exotic-metal55

Modified amg springs are used with some increased spring pressure to accommodate the stock and mild aftermarket cams. If you need some other custom springs for your build, that can be arranged as well.

Exotic-metal55

Bump (winter race season is almost here)