You can buy all sorts of performance parts for them - big bore kits, scat cams, del orto carbs, slick shift kits... The list goes on and on. You can build yourself about 200HP pretty easily when you punch it out to 2 litres.

A jug kit with extra cooling fins and an oversized oil cooler will help with the heat.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250