Editing Ford FE engine (section)

=====428 Super Cobra Jet=====
The ''428 Super Cobra Jet''  (also known as the 428SCJ) used the same top end, pistons, cylinder heads, camshaft, valve train, induction system, exhaust manifolds, and engine block as the 428 Cobra Jet.  However, the crankshaft and connecting rods were strengthened and associated balancing altered for drag racing. A nodular iron crankshaft casting #1UA was used as well as heavier 427 "Le Mans" connecting rods with capscrews instead of bolts for greater durability. The heavier connecting rods and the removal of the centre counterweight on the stock 428 Cobra Jet crankshaft (1UA), required an external weight on the snout of the crankshaft for balancing. A 428 Super Cobra Jet engine with oil cooler was standard equipment when the "Drag Pack" option (which came when selecting either a 3.91 or 4.30 rear end gear ratio) was ordered with cars manufactured from 13 November 1968.  In addition, while the CJ and SCJ engines used the same autothermic piston casting, the piston-to-bore clearance specification between the CJ and SCJ 428 engines is slightly different, with the SCJ engines gaining a slightly looser fit to permit higher operating temperature.<ref>{{cite web|url=http://www.428cobrajet.com/id-piston |title=Pistons &#124; Mustang 428 Cobra Jet Registry |publisher=428cobrajet.com |access-date=2014-02-28}}</ref> Horsepower measurements at a ''street'' rpm level remained the same.<ref>{{cite web|url=http://www.428cobrajet.com/cj-vs-scj |title=428 Cobra Jet vs. 428 Super Cobra Jet &#124; Mustang 428 Cobra Jet Registry |publisher=428cobrajet.com |access-date=2014-02-28}}</ref> The 428 Super Cobra Jet engine was never offered with factory air conditioning due to the location of its engine oil cooler.