What gear ratio? 283 stocker

stock4174 · 01-04-2011, 02:10 PM

Building a 1965 Chevy II wagon stocker, 283/220, Jerico trans, MT 29.5x9 stick tire. Trying to complete car before I start on my homebuilt motor. Got a new 12 bolt housing and axles but what gear ratio do I need? Do I need a pro gear? What rpm will a 283 stocker motor turn? Thanks in advance, Chris

Bill Belden · 01-04-2011, 03:34 PM

you have a pm

rx dealer · 01-04-2011, 03:41 PM

Look at your dyno sheet and that will tell you when to shift. If you didn't dyno then a safe bet will be 6800-7000 and a 5:13 to a 5:38 gear..use a pro gear, you have a heavy car and a stick...just my WAG...good luck and have fun...Luke SS 311

Bob Bender · 01-04-2011, 04:03 PM

I have used 5.38, 5.57 and 5.86 in mine. the 5.86 was the best.

greg fulk · 01-05-2011, 03:43 AM

If it was me I would buy a new 5.38 to "shake the car down" the 5.38 shouldn't be to much gear....then when you get everything working I'd look & see if I could find a used 6.14 or 5.86 to see what that would do...that way you could find the max gear it would take...I know of several cars that run the 6.14 (their all heavy). Then you could go from their. (rem not all cars are alike)

Mike Taylor 3601 · 01-06-2011, 02:37 PM

Absoulutely use Pro gear in stick. use formula to get close, mph X gear ratio X 336 divided by tire height = RPM On stick car will be almost dead on calculation.
Mike Taylor 3601

01-04-2011, 02:10 PM	#1
stock4174 Junior Member Join Date: Feb 2008 Location: Memphis,Tn. Posts: 8 Likes: 2 Liked 0 Times in 0 Posts	What gear ratio? 283 stocker Building a 1965 Chevy II wagon stocker, 283/220, Jerico trans, MT 29.5x9 stick tire. Trying to complete car before I start on my homebuilt motor. Got a new 12 bolt housing and axles but what gear ratio do I need? Do I need a pro gear? What rpm will a 283 stocker motor turn? Thanks in advance, Chris

01-04-2011, 03:34 PM	#2
Bill Belden Member Join Date: Jun 2002 Location: York, PA Posts: 241 Likes: 0 Liked 1 Time in 1 Post	Re: What gear ratio? 283 stocker you have a pm __________________ Bill Belden Retired Stock Eliminator [emailSTK1100@comcast.net[/email]

01-04-2011, 03:41 PM	#3
rx dealer Member Join Date: Mar 2007 Location: Lake Orion, Michigan Posts: 337 Likes: 12 Liked 53 Times in 13 Posts	Re: What gear ratio? 283 stocker Look at your dyno sheet and that will tell you when to shift. If you didn't dyno then a safe bet will be 6800-7000 and a 5:13 to a 5:38 gear..use a pro gear, you have a heavy car and a stick...just my WAG...good luck and have fun...Luke SS 311

01-04-2011, 04:03 PM	#4
Bob Bender VIP Member Join Date: Jan 2009 Location: Maryland Posts: 1,732 Likes: 1,596 Liked 459 Times in 90 Posts	Re: What gear ratio? 283 stocker I have used 5.38, 5.57 and 5.86 in mine. the 5.86 was the best. __________________ Bob Bender 144 O/SA 2010-2012 National Record Holder

01-05-2011, 03:43 AM	#5
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: What gear ratio? 283 stocker If it was me I would buy a new 5.38 to "shake the car down" the 5.38 shouldn't be to much gear....then when you get everything working I'd look & see if I could find a used 6.14 or 5.86 to see what that would do...that way you could find the max gear it would take...I know of several cars that run the 6.14 (their all heavy). Then you could go from their. (rem not all cars are alike) __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

01-06-2011, 02:37 PM	#6
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,368 Likes: 346 Liked 292 Times in 101 Posts	Re: What gear ratio? 283 stocker Absoulutely use Pro gear in stick. use formula to get close, mph X gear ratio X 336 divided by tire height = RPM On stick car will be almost dead on calculation. Mike Taylor 3601