Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - '76 sbc build , need more head advice
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Old 02-25-2008, 09:02 PM
barnym17 barnym17 is offline
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true the final drive in high gear is close but the over drives have the advantage of deep gears off the line. I beleive you can get what you are looking for with a gear change. I would go to a 3.42 or 3.73. an example would be if your engine makes 200 ft.lbs of touque the 2.73 gears would multiply this into 546 ft.lbs of tourque. a 3.73 at the same speed would be 746 ft.lbs at the rear wheels.Now this is just an example using a easy number to work with but you see the point. No head change by itself will give you anywhere near an extra 200 ftlbs at the rear wheels at the same speed.
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