What Size Torque Converter
Thread Starter
Heel & Toe
Joined: Dec 2013
Posts: 15
Likes: 0
From: bellman fl
What Size Torque Converter
I have almost completed my rebuild on my 73. One of the last things being done is the TH400 rebuild. The engine is a 350 bored 30 over with a highrise intake and a 650 Edelbrock carb everything else stock. The tranny had a 3000 stall TQ in it and I'm sure I don't need that much but I'm not sure what I do need. I'm not building a race car, just a nice (hopefully) head turner. After doing a lot of research on this I am even more confused now so I thought I would ask a group of people with hands on experience, so I'm asking, Which torque converter will work best for me.
Thanks
Thanks
Melting Slicks
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
For a setup that close to stock as far as cam and compression, a stock or near stock converter sounds smart to me. A 2000 or 2200 RPM stall would be plenty and be easier on your cooling system and transmission around town and, as a bonus, perhaps give you a little better mileage.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Purchase a stock replacement for your car/engine or a converter with 2000 rpm [or lower] stall speed. It will drive better under normal driving conditions AND get much better in-town fuel mileage without that high-rpm torque converter.
Safety Car
Joined: Oct 2004
Posts: 3,926
Likes: 739
From: Youngstown Ohio
On a basically stock engine, a 2500 or so converter would be plenty.....this would give you a great holeshot and no slippage at the top end. In other words, great response on the street. 3000 rpm is more suited for a cam that has less low rpm power......and may introduce some slippage and sluggishness at cruising speeds, as well as more heat and the necessity of a trans cooler.
I've used stock, 2500, and the custom 2900 I now have.......all were for specific engines and drivetrains. On the street, with a stock or slightly higher engine, the 2500 was perfect along with a shift kit in the trans. Neck snapping starts and tire chirps through the gears.
I've used stock, 2500, and the custom 2900 I now have.......all were for specific engines and drivetrains. On the street, with a stock or slightly higher engine, the 2500 was perfect along with a shift kit in the trans. Neck snapping starts and tire chirps through the gears.
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
A 1969 L-89 stock converter would be a good choice as there built for the 427 engines with a turbo 400 with a higher stall speed .......and good for a future higher performance cam change......otherwise leave the present converter in place
I mention this {cam} as that could be another basic improvement
I mention this {cam} as that could be another basic improvement
