Torque convertor recommendations?
Thread Starter
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Senior User
Joined: Jun 2005
Posts: 176
Likes: 0
From: Temple, TX
Torque convertor recommendations?
Truck is a '78 2wd C6 3.50 rear...
Engine will be:
'78 460 ~8.5:1
Mildly ported D3 heads
Edelbrock Performer
Holley 750
Comp XE262H
Headers w/ 2 1/4 duals
I'm expecting torque peak somewhere around 2800 rpm and hp at or just below 5000.
Basically, this will be an all-purpose daily driver... I want to be able to tow 6-7000 pounds reliably, potentially long distances. I'd also like to be able to take it to the drag strip once in a while and have some fun (hopefully somewhere in the mid-14 second range?)
Just looking at Summit's selection, I like the TCI Sizzler 1700 rpm convertor, and the TCI "High Torque Towing" 1200 rpm convertor. I think something in the 1700 rpm range would be ideal, but at the same time I'm worried that a "street/strip" convertor wouldn't last too long towing any kind of significant load. Do you guys think a convertor rated at 1200 is too tight for that cam? For comparison, what does a stock convertor stall at?
Thanks guys
Engine will be:
'78 460 ~8.5:1
Mildly ported D3 heads
Edelbrock Performer
Holley 750
Comp XE262H
Headers w/ 2 1/4 duals
I'm expecting torque peak somewhere around 2800 rpm and hp at or just below 5000.
Basically, this will be an all-purpose daily driver... I want to be able to tow 6-7000 pounds reliably, potentially long distances. I'd also like to be able to take it to the drag strip once in a while and have some fun (hopefully somewhere in the mid-14 second range?)
Just looking at Summit's selection, I like the TCI Sizzler 1700 rpm convertor, and the TCI "High Torque Towing" 1200 rpm convertor. I think something in the 1700 rpm range would be ideal, but at the same time I'm worried that a "street/strip" convertor wouldn't last too long towing any kind of significant load. Do you guys think a convertor rated at 1200 is too tight for that cam? For comparison, what does a stock convertor stall at?
Thanks guys
Lead Driver
Joined: Nov 2000
Posts: 6,635
Likes: 349
From: Albuquerque
F.Y.I. I run a 2300 stall (modified stock) converter with around 425hp. I've towed a boat with an overhead camper that hangs off the tailgate and driven it daily and have no qualms about running it through the gears. I have a tranny cooler. I've used the same converted on two transmissions for over 100,000 miles.
I wouldn't go any tighter than 1,800rpm stall.
I wouldn't go any tighter than 1,800rpm stall.
