Torque converter question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Atomsplitter · 10-10-2012, 04:13 PM

I installed a stock 1995 Impala SS 5.7L with a 700r4, 3:42 rear end and my truck weighs 3200lbs. The donor car weighs 4200lbs
Not looking to race, just cruise around town, highways and sometimes step on the gas a bit too hard!
What stall speed should I get?

sickred72 · 10-10-2012, 07:05 PM

get a stock astro or blazer 4.3 torque converter. I sell them all the time, stock stall in that converter is 1999 stall ( so lets call it 2000 stall ) your stock v8 converter is 1500-1600 stall. Any questions just ask. jerald (superior torque converter)

1project2many · 10-10-2012, 08:05 PM

Stall speed is measured with the driveshaft locked ("stalled") so it doesn't matter what the weight of the vehicle is. But lighter vehicles will start to roll at slightly lower rpm than heavier vehicles with the same stall converter and rear gear ratio. The difference isn't going to be huge with those weights, likely to be less than 300 rpm.

10-10-2012, 04:13 PM	#1
Atomsplitter Registered User Join Date: Mar 2006 Location: Ontario Posts: 514	Torque converter question I installed a stock 1995 Impala SS 5.7L with a 700r4, 3:42 rear end and my truck weighs 3200lbs. The donor car weighs 4200lbs Not looking to race, just cruise around town, highways and sometimes step on the gas a bit too hard! What stall speed should I get?

10-10-2012, 07:05 PM	#2
sickred72 Registered User Join Date: Oct 2005 Location: oregon Posts: 204	Re: Torque converter question get a stock astro or blazer 4.3 torque converter. I sell them all the time, stock stall in that converter is 1999 stall ( so lets call it 2000 stall ) your stock v8 converter is 1500-1600 stall. Any questions just ask. jerald (superior torque converter)

10-10-2012, 08:05 PM	#3
1project2many Registered User Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,169	Re: Torque converter question Stall speed is measured with the driveshaft locked ("stalled") so it doesn't matter what the weight of the vehicle is. But lighter vehicles will start to roll at slightly lower rpm than heavier vehicles with the same stall converter and rear gear ratio. The difference isn't going to be huge with those weights, likely to be less than 300 rpm.



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