All 6.7L blocks are manufactured by American foundry company, Tupy.įirst for the truck segment, Ford's 6.7L Power Stroke uses cast-aluminum cylinder heads. This affects positively on engine longevity. ![]() The engine was equipped with piston cooling jets for lower piston and combustion temperatures. The connecting rods have an end cap that is rotated 45 degrees to increase strength. The 6.7 Power stroke also features a steel crankshaft, powdered-metal cracked-cap connecting rods made by Mahle, and Federal Mogul cast-aluminum pistons. This block layout in addition to the CGI material provides significant weight savings over the 6.4L predecessor. Its deep-skirt block also has nodular iron six-bolt main caps highly common on the 7.3L Power Stroke instead of the 6.4L's bed plate. ![]() While the majority of current diesel engines use heavy cast iron, the 6.7L Power Stroke has a cylinder block made from compacted graphite iron (CGI).
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