Quote:
Originally Posted by Scarebird
Given that you are in Italy with high priced fuel, have you given thought of destroking the 455?
Rocky Rotella mentions in his excellent Trans Am book the 366; a NASCAR qualified 6 liter in the early 70's.
Pontiac engineering made a few test motors in street form, using round port heads. They found that they hit a "sweet spot", it had the same torque and more power than a 400 but sales squashed it. This motor had a 3.375 stroke and large bore - 4.180" so a 455 would be a natch for this.
Issue of course is the crank - it would take some work to make one work - perhaps a 428 unit with custom rods?
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A 455 can be built to get 20mpg
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
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