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Old 01-05-2015, 03:57 PM
jconley jconley is offline
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Join Date: Nov 2014
Location: Sugar Land, TX
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I'm building an ERA Cobra, and initially I was think of using a 428 because it was used in the "street" version of the Cobra, plus because of it's reputation for high torque at low rom. My car will mostly be used for cruising, with some autocross, and may be a track day. So, I'm not necessarily looking for high HP numbers, but a car that is easy to drive on the street and highways, and with low end torque for autocross (60 mph max).

I was reading the book Shelby Cobra Fifty Years, and learned that there were actually "street" 427s (CSX3301 and later). So I was curious if there was a resource (book, web) that described the difference between the three 427 engines.

Heads and intakes: low, medium and high risers
1x4, 2x4 carburation
compression ratios
cams
etc

Perhaps there are too many differences to list, and I can understand that. I suppose the fact is that a 427 can be configured with the right components to be as streetable as a 428.
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