Rear gear selection for Chevy ll 327 stocker build......

Mike Taylor 3601 · 04-08-2013, 01:39 PM

MPH X Gear ratio X 336 divided by tire height = RPM.
You'll have to allow for converter slippage someone else could tell you more on that # but probaly 5-8% would be good guess as example figures crossing @ 7100 add 8% would be 7668
Stick car will match formula almost exactly.
Can also figure converter % slippage@ top end w/this formula as close as can for guys without data recorder
Mike Taylor 3601

04-08-2013, 01:39 PM	#2
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,372 Likes: 358 Liked 308 Times in 103 Posts	Re: Rear gear selection for Chevy ll 327 stocker build...... MPH X Gear ratio X 336 divided by tire height = RPM. You'll have to allow for converter slippage someone else could tell you more on that # but probaly 5-8% would be good guess as example figures crossing @ 7100 add 8% would be 7668 Stick car will match formula almost exactly. Can also figure converter % slippage@ top end w/this formula as close as can for guys without data recorder Mike Taylor 3601