1973 Mercedes Benz 230
modified 1973 Mercedes Benz 230 head with
dividers and custom made
"Thin Stem Valve" valve guides.
Deck surface showing high
compression welded chambers.
Before and after views of chambers that were welded
reshaped for greater
airflow and higher compression.
Note custom smaller diameter valve guides.
Before and after views of intake & exhaust ports showing
welded up divider
Intake manifold ports were also
Separated and exhaust headers were fitted to
Stock valves with large stem diameters (9 MM
& 11 MM exhaust) are
shown with custom "Thin Stem"
(8 MM) replacement valves in center.
with custom made valve guides and valve spring retainers.
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