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I'm jsut wondering the differences of the long block besides the powdercoated connecting rods and the revised heads. the reason I'm wondering is because I'm not sure of the casting changes for me to be able to swap it into my firebird. Anyone know of any other differences?
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Re: series II vs series III
On the na engine upper intake manifold is aluminum. Intake ports are mildy improved, 1.83" intake valves instead of 1.80" and 1.52" exhaust valves. Electronic throttle control and returnless fuel injection.
Better Emission.
1998 Firebird . 1989 Firebird XS . 1986 Fiero GT -
Re: series II vs series III
I dont have to worry about the upper though since I will only be using from the heads on down. Thanks thor. I think I'm going to go ahead and buy this and then I'll let you guys know of any differences between the 2 in options of swapping it outCar expresses who you are. If you have a ****ty car, you must be a ****ty person;)<br /><br /><a href=\"http://www.cardomain.com/ride/995979\" target=\"_blank\">http://www.cardomain.com/ride/995979</a>Comment
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