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84LX89GT · 11-20-2002, 07:16 PM

There were both a Ford GT40 cast iron and aluminum engine you could choose from, so who knows. I know the cast iron heads (i just bought some) have "GT" cast into below the exhaust ports (forget which side of the head). Usually aluminum is ALOT lighter color than cast iron and the block and heads will be different colors. This is all i can think of.

11-20-2002, 07:16 PM	#7
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	There were both a Ford GT40 cast iron and aluminum engine you could choose from, so who knows. I know the cast iron heads (i just bought some) have "GT" cast into below the exhaust ports (forget which side of the head). Usually aluminum is ALOT lighter color than cast iron and the block and heads will be different colors. This is all i can think of. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)