The Ford V-8 Engine Workshop|
Gurney-Weslake Small Block
"Actually, we began our inquest with extensive rework
of the existing 271 hp heads.", said Dan Gurney holding back a smile.
"At the peak of our testing with the 271 hp cast iron heads on a 325-inch block, we were pulling as much as 448 hp on gasoline. It was about this time we figured a few improvements along the lines of a new head design might give us even more power, so we got after it."
Not much remains of the stock 289 HP bottom end. The crankshafts were custom made by
Dearborn Crankshaft Company. Bearing inserts were taken from the
Ford DOHC Indy engine. Carrillo rods, super finished and shot peened
were fitted. Stock 289 oil pans were chopped up and baffled for each particular type of
track. Probably the most interesting modification was the addition of a main cap girdle.
Even so, main bearing saddle cracks were common. Stock 289 head gaskets were found to work
|ENGINES||FLATHEAD||FE||SMALL BLOCK||BIG BLOCK||CLEVELAND|