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Sep
25

FAQ: Torque Converter Splines

faq-vesta

 

Q: I need a new converter for my 700R4 and I want to make sure I order the right one. I see you offer a 27-spline, and a 30-spline option. Which one do I need?

A: Sometimes just knowing your transmission year, or your casting number on your transmission case, is not enough to ensure you are ordering the correct converter. The reason is because a popular upgrade on the 1982-1984 transmission is to upgrade the 27-spline shaft to the later, stronger, 30-spline shaft. This is why it’s a good idea to count your splines just to be sure.

Q: Which splines do I count — the inner or the outer ones?

A: You will want to count the outer splines on your existing converter — the smaller ones that are closest to the end of the output shaft. These can be difficult to count so you will need to take your time.

If you have any questions about which converter will work best with your application, please feel free to email us at any time at sales@oregonperformancetransmission. 

Oct
15

2004R High Stall produces results!

Recently customer Mark purchased our 2004R high stall torque converter (part number ORE-65-15B-10) and had these comments after installation:

“I just finished installing the 2000-2600 stall 2004R converter I bought from you Sep 29th. I wanted you to know how happy I am with it’s performance so far. My Corvette weighs 3120 lbs, has a 350 engine with about 435 hp/435 ft.lbs torque, and a 4.11:1 differential. The foot brake stall is about 2200rpm, and I think the flash stall is a little higher than that. Having gone from a 1500rpm stall converter to this one, my launch has improved greatly. I finally get the neck-snapping starts I should get with a 435hp engine. I did a 0-60 test, and it came in at under four seconds! … It seems to be a good balance between launch snap and street manners. Thank you so much for the great price on this quality torque converter. I will tell my friends where I got it.”

Thanks for your kind feedback, Mark. We love to hear successful project stories like yours.
Here’s a photo of Mark’s 1979 Corvette!
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