Torque Converters

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Doppleganger

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OH-MI: Just like it sounds
First Name
Chris
Truck Year
1985
Truck Model
K20
Engine Size
5.7
Probably a stupid question but I admit that its been a loong time since I had a V8 worth messing with.

Have a 'new' motor - a 97 5.7L to replace the original 85 5.7. All the peripherals (starter, accessories, etc) are also 97. Edelbrock FI. I'm staying with the TH400 for now. Low miles and works great but will still probably have it gone through while everything is out and apart.

How do you figure the correct torque converter for this....and is the flywheel the same from the 85 to the 97? Guy who built the motor (old school guy - has built 100s) told me to get a 2400-2800. Said thats a tad higher than stock. I dont doubt him but would like to know: why? Also - brands, etc.

TIA
 

Poppy 87

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Bloomingdale GA
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John
Truck Year
1987
Truck Model
R10 Silverado
Engine Size
305
Pretty sure the flex plate is different (1 piece vs 2 piece rear main seal) Not sure what you are using the truck for. ATI makes good racing converters. Most converter companies will want camshaft specs, gear ratio, tire size, etc. Good luck
 

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