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PKRWUD · 10-07-2002, 04:26 AM

4.6L SOHC/4.6L DOHC/5.4L SOHC

In 1991, Ford unleashed a new era of muscle, one that is propelling us into the future. The modular engine focuses on low friction, excellent sealing and increased block stiffness. The design results in an extremely smooth running engine using aluminum heads and having all accessories rigidly mounted to the engine. Both the engine block and head are machined to close tolerances to produce a very precise assembly. The head bolts of modular engines actually extend past the cylinder bores into the bearing webs, eliminating bore distortion and providing a better head gasket seal. The sophisticated overhead cam design uses roller finger followers to lower friction and increase the RPM potential of the engine. On the bottom end, the deep skirt engine block and cross-bolted main caps contribute to a higher rigid assembly. Two engine plants manufacture Modular engines; Romeo produces all passenger car versions and Windsor produces the Modular Truck engines. HereÕs a brief description of Modular V-8 engines.

4.6L SOHC

The 4.6L SOHC (2V) was first introduced in 1991. This engine is the basis for all modular engines as is used in passenger cars as well as trucks. The block is cast iron with a nodular crankshaft, while the heads are aluminum using an in-line valve design with 1 intake and 1 exhaust valve per cylinder. All passenger cars have press fit piston pins, while all truck engines have full floating piston pins to improve durability.

4.6L DOHC

The 4.6L DOHC (4V) was first introduced in the Mark VIII; however, in 1996 a similar version of this engine found its calling in the Mustang Cobra. The aluminum block and four-valve head make for a powerful combination producing 305 HP @ 7000 RPM. Internally the 4 bolt, cross-bolted main bearing caps provide the support necessary to easily handle the high RPM potential of the forged steel crankshaft. This engine uses hypereutectic pistons with full floating piston pins and upgraded connecting rod assemblies to improve durability.

5.4L SOHC

The 5.4L SOHC (2V) "Triton" engine released in trucks for 1997 is producing favorable reactions. This engine has a cast iron block, forged steel crankshaft, full floating piston pins and special 6000 RPM connecting rods. It is the 5.8L "pushrod engine" replacement.

Modular Engine Family

60-degree V-6 DOHC

* 2.5L - various
* 2.5L - SVT Contour
* 3.0L - various
* 3.0L - Lincoln LS

V-8 DOHC

* 3.4L - SHO

V-12 DOHC

* 6.0L - Aston
* 6.0L - Indigo & GT90 (show car)

90-degree V-8 SOHC

* 4.6L
* 5.4L - Triton
* 5.4L - SVT Lightning

V-8 DOHC

* 4.6L - Intech
* 4.6L - SVTÊ
* 5.4L - LincolnÊ
* 5.4L - Super Stallion (Show Car)
* 5.4L - Cobra RÊ

V-10 SOHC

* 6.8L - Triton

Take care,
~Chris

10-07-2002, 04:26 AM	#12
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	In short... 4.6L SOHC/4.6L DOHC/5.4L SOHC In 1991, Ford unleashed a new era of muscle, one that is propelling us into the future. The modular engine focuses on low friction, excellent sealing and increased block stiffness. The design results in an extremely smooth running engine using aluminum heads and having all accessories rigidly mounted to the engine. Both the engine block and head are machined to close tolerances to produce a very precise assembly. The head bolts of modular engines actually extend past the cylinder bores into the bearing webs, eliminating bore distortion and providing a better head gasket seal. The sophisticated overhead cam design uses roller finger followers to lower friction and increase the RPM potential of the engine. On the bottom end, the deep skirt engine block and cross-bolted main caps contribute to a higher rigid assembly. Two engine plants manufacture Modular engines; Romeo produces all passenger car versions and Windsor produces the Modular Truck engines. HereÕs a brief description of Modular V-8 engines. 4.6L SOHC The 4.6L SOHC (2V) was first introduced in 1991. This engine is the basis for all modular engines as is used in passenger cars as well as trucks. The block is cast iron with a nodular crankshaft, while the heads are aluminum using an in-line valve design with 1 intake and 1 exhaust valve per cylinder. All passenger cars have press fit piston pins, while all truck engines have full floating piston pins to improve durability. 4.6L DOHC The 4.6L DOHC (4V) was first introduced in the Mark VIII; however, in 1996 a similar version of this engine found its calling in the Mustang Cobra. The aluminum block and four-valve head make for a powerful combination producing 305 HP @ 7000 RPM. Internally the 4 bolt, cross-bolted main bearing caps provide the support necessary to easily handle the high RPM potential of the forged steel crankshaft. This engine uses hypereutectic pistons with full floating piston pins and upgraded connecting rod assemblies to improve durability. 5.4L SOHC The 5.4L SOHC (2V) "Triton" engine released in trucks for 1997 is producing favorable reactions. This engine has a cast iron block, forged steel crankshaft, full floating piston pins and special 6000 RPM connecting rods. It is the 5.8L "pushrod engine" replacement. Modular Engine Family 60-degree V-6 DOHC * 2.5L - various * 2.5L - SVT Contour * 3.0L - various * 3.0L - Lincoln LS V-8 DOHC * 3.4L - SHO V-12 DOHC * 6.0L - Aston * 6.0L - Indigo & GT90 (show car) 90-degree V-8 SOHC * 4.6L * 5.4L - Triton * 5.4L - SVT Lightning V-8 DOHC * 4.6L - Intech * 4.6L - SVTÊ * 5.4L - LincolnÊ * 5.4L - Super Stallion (Show Car) * 5.4L - Cobra RÊ V-10 SOHC * 6.8L - Triton Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!