Best gears for the quarter mile? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dion · 09-26-2002, 09:13 PM

4:10 or 3:73?

bigjimzlll · 09-26-2002, 09:22 PM

that depends on your engines power band..if the motor makes it power from 3500-7000 then 4;10s or 4;56 would be the ticket, but if the motor is more in the 2000-6000 range I would go with 3;73s

adamls · 09-26-2002, 09:33 PM

Sometimes if your engine makes gobs of low end torque (500 ft-lbs) around 2000, even 373's are a little too much. I wouldnt go below 350's though. Mr. Gasket has a really great program called Dragstrip 2000. It will give a pretty good idea of track performance if you know your engine specifics. You can change inputs and see the outputs on the screen.

540 Stroker · 09-26-2002, 11:03 PM

4.10s would be my choice after looking over your engine/converter combo.

383 Stroker · 09-26-2002, 11:17 PM

Both work good, it depends on your powerband and tire size.

dion · 09-26-2002, 11:18 PM

To tell the truth we haven't installed the 3:73 yet, they were supposed to go in a few weeks ago but I put it off ( I changed the signature ) 4:10 are better off the line but 3:73 are better after, true or no? I raced a new GMC truck a couple of days ago and he beat me bad off the line but I caught up to him in a few seconds and blew past him.

09-26-2002, 09:13 PM	#1
dion 72 Cheyenne Join Date: Oct 2001 Location: San Diego Posts: 2,086	Best gears for the quarter mile? 4:10 or 3:73? __________________ Burnout Idle 1972Cheyenne 1966/67Stouts

09-26-2002, 09:22 PM	#2
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	that depends on your engines power band..if the motor makes it power from 3500-7000 then 4;10s or 4;56 would be the ticket, but if the motor is more in the 2000-6000 range I would go with 3;73s __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

09-26-2002, 09:33 PM	#3
adamls Gotta Startem Early Join Date: Oct 2001 Location: Amarillo, TX, USA Posts: 364	Sometimes if your engine makes gobs of low end torque (500 ft-lbs) around 2000, even 373's are a little too much. I wouldnt go below 350's though. Mr. Gasket has a really great program called Dragstrip 2000. It will give a pretty good idea of track performance if you know your engine specifics. You can change inputs and see the outputs on the screen. __________________ 67 SWB In Progress, one piece at a time, maybe 3 years I will be finished

09-26-2002, 11:03 PM	#4
540 Stroker Registered User Join Date: Sep 2002 Location: Northern Illinois Posts: 53	4.10s would be my choice after looking over your engine/converter combo. __________________ Got torque? Last edited by 540 Stroker; 09-26-2002 at 11:07 PM.

09-26-2002, 11:17 PM	#5
383 Stroker Registered User Join Date: Aug 2001 Location: Jesup, GA Posts: 571	Both work good, it depends on your powerband and tire size. __________________ Video's of my Truck Racing 1967 C-10, 383ci Sbc, TH350, 3200 stall, 3.73 gear

09-26-2002, 11:18 PM	#6
dion 72 Cheyenne Join Date: Oct 2001 Location: San Diego Posts: 2,086	To tell the truth we haven't installed the 3:73 yet, they were supposed to go in a few weeks ago but I put it off ( I changed the signature ) 4:10 are better off the line but 3:73 are better after, true or no? I raced a new GMC truck a couple of days ago and he beat me bad off the line but I caught up to him in a few seconds and blew past him. __________________ Burnout Idle 1972Cheyenne 1966/67Stouts

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