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460-c6 rear gear
#1
My 4:33's are a blast but wayyy over kill for what the 80% street driving I do. I have a spare 3rd member so im going to set up a street gear. whos got a big block and a c6 that can share some numbers with me. Im leaning toward a 3.50 now. id like to be comfortable at 65-70mph. Right now at 55 (estimate) im at 3300 and it sucks. But the gears were free at leastSmile

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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#2
You might use this to get an idea of what you want. http://www.wallaceracing.com/gear-speed.php

Chuck
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#3
I have run a 3:89 with a 460 and C6. They were over kill on the street for sure with a P245-60-15 T/A.

[Image: 16kuyc0.jpg]
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#4
c9zx;39090 Wrote:You might use this to get an idea of what you want. http://www.wallaceracing.com/gear-speed.php

Chuck

Cool link. Very helpful.
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#5
i use a 3.50 with a 25.7 inch tall tire and it works out great. however i don't have a c6 but i have a tko600 trans. i did however have a c6 originally and my 3.89 cogs was too much for a 6000rpm max powerband.

i guess its all depends on your powerband is like.

and BTW, i'm planning on building a 545 stroker with something that makes max power at or before 6000rpms after this deployment. maybe you and i should talk about big block strokers.
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#6
As c9 said wallace racing has tons of calculators. I use them constantly. Just remember that lets say you run a 350 gear with a 25 inch tire, your now running a 360 or 370 ratio. I you go to a 31 inch tire then your 350 would be more like a 330 or 340 ratio. All ratios are based on a 28 inch tire. I'm building a pumped up 466/c-6 with a 350 and it calculated out still alittle high rpm at 55, I think it was around 2000 rpm and thats with a 27.1 inch tire.
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#7
PAPPY HAROLD;39122 Wrote:As c9 said wallace racing has tons of calculators. I use them constantly. Just remember that lets say you run a 350 gear with a 25 inch tire, your now running a 360 or 370 ratio. I you go to a 31 inch tire then your 350 would be more like a 330 or 340 ratio. All ratios are based on a 28 inch tire. I'm building a pumped up 466/c-6 with a 350 and it calculated out still alittle high rpm at 55, I think it was around 2000 rpm and thats with a 27.1 inch tire.

i run a 28.1 inch tall slick with the same gear Big GrinBig Grin
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#8
I have 3.70s with a 27" tire and it is ok for short highway trips but I will most likely go to 3.50s when I drive the car next time.

[Image: faood3.png]
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#9
Thanks for all the replies, 73-what are yourrpms at with the 3:70s? I'm assuming you have the c6? Im using a 29x12.5 tire, do its either a 3:50 or 3:70..

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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#10
I have a 460/c6 and 3.50 gears and I would not go any higher that.
Andy
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