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Old 03-05-2012, 12:36 AM
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5.3

im trying to put a small block chevy 5.3 in my 85 bonnie i would like to know wat size stall and gears should i go with it came out a 2004 tahoe

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Old 03-05-2012, 01:53 AM
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is this a stock engine or are you planning on building it at all? really depends on what you want to do with it...
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Old 03-06-2012, 12:59 AM
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Quote:
Originally Posted by johnboy9389
im trying to put a small block chevy 5.3 in my 85 bonnie i would like to know wat size stall and gears should i go with it came out a 2004 tahoe
Also are you planning on using an OD automatic, or not? This will have a huge bearing on the rear gear ratio...

Anyway, assuming the stock 5.3 and using the tranny from the Tahoe, the stock converter will be tight- but that's not necessarily a bad thing for a stock engine, especially when you consider the cost for a good torque converter opposed to using the stock TC.

If max acceleration is your goal, there will be something to be gained by a slightly looser TC and =/>4.11 rear gears. The stock TC will have a lower stall speed in your lighter Bonnie, especially if the gears are lower (higher numerically).

Last edited by cobalt327; 03-06-2012 at 01:05 AM.
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