![]() Pistons are interchangeable between the DOHC and SOHC, 6.8L, 5.4L & 4.6L engines.īut you will need to check piston to valve clearance when doing so. Most of the pistons used in modular engines are dished. These exceptions are the supercharged Lightning and Cobra. The pistons used in modular engines are all of the hypereutectic style,with a few exceptions. These rods have a larger big end than the standard modular rods. The strongest factory style rods to date are the rods used in the supercharged 5.4L lightning. The 4.6L DOHC engines use the same rods as are used in the Windsor's. The Windsor (or Triton) engines use a larger connecting rod that is stronger than the passenger car engines. The 4.6L SOHC passenger car engines have the weakest rods. With the exception of the 2000 Cobra R (Carillo) and the 2003-2004 Cobra's (Manley H-beam)Īll modular engines have come with sinter forged powdered metal connecting rods Note that just because a crank has 8 bolts does not mean that it is forged Thick line for forged, thin line for cast The only way to know for certain is to look at the parting line. Most of the cranks are forged, but not all The cranks in the 5.4L DOHC and SOHC engines are also available in cast or forged. ![]() These cranks are manufactured by Gertach in Germany for Ford ![]() The only factory forged cranks available for the 4.6L DOHC engines are installed in the Cobra. The 2-valve Windsor engines use both a 6 & 8 bolt flywheel, the Romeo engines use 6 They come in both 6 & 8 bolt flywheel configurations. The most common cranks for 4.6L engines are the nodular cast iron units.
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