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10-24-2002, 10:56 PM
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#1 |
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Registered User
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
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4.10s to 3.73s????
I have 4.10s right now in my truck and it revs very high down the high way. I was wondering would i notice a significant decrease in RPMs at highway speeds? Also how would it affect the acceleration of the truck?...dont want to be too slow Thanks
HotRod
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1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/ |
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10-24-2002, 11:17 PM
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#2 |
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Senior Member
 
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,881
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The 3.73 turns approx. 90% of the engine revs of the 4.10, which means that if you're turning 4000 at a given speed with the 4.10. the 3.73 will drop the rpm to about 3600. It's not a huge difference, but it might help the mileage. As far as launching the truck, it really depends on how much hp/torque you have. If it breaks loose pretty easily now, it will probably still break loose. If it struggles to get out of its own way, it's going to struggle a little more.
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