(34042) 17-Spline Torque Converter
- 1962-73 GM Powerglide, 17 spline
- 2200-2800 RPM stall, Nightstalker Level 2
- 12 inch converter diameter
- 32.3 pounds item weight
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A mild-stall performance converter for the older GM Powerglide automatic. The stall range suits a street car, but the listing says nothing about lock-up or the hub specification beyond spline count.
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ASIN: B004PL09TCModel: 34042Category: Torque Converters
Overview
ACC Performance builds this Nightstalker Level Two converter for the GM Powerglide automatic used from the early sixties into the seventies. It carries a seventeen spline hub and a twelve inch shell, and mounts between the engine and transmission to multiply launch torque.
A moderate stall speed lets a modified engine reach its power band quicker off the line without turning the car into a drag-only machine. Stall range is the one performance number given, so engine and gearing still need matching on your side.
Who it's for
Classic GM owners who run a Powerglide and want livelier launches with street manners will find the right rating. Anyone with a different transmission, or a race car needing high stall, should choose another unit.
Pros and cons
- Stall range suited to street builds
- Made for Powerglide transmissions
- Seventeen spline input
- Lock-up status not listed
- Heavy to handle during install
- Engine matching left to the buyer
Performance notes
A looser converter lets the engine rev before the transmission fully couples, so a modified engine can build power sooner at launch. Higher stall also means more slip at cruise unless the converter locks up, which the listing does not mention.
Specifications
| Brand | Performance |
|---|---|
| Model | 34042 |
| Dimensions & fit | |
| Converter diameter | 12 inches |
| Item weight | 32.3 pounds |
| Product dimensions | 13.2 x 13.3 x 8.1 inches |
| Capacity & performance | |
| Stall speed | 2200-2800 RPM |
| Other details | |
| Spline count | 17 |
| Part number | 34042 |
Frequently asked questions
Does the ACC Performance 34042 converter need special care?
The listing gives no service interval. Fluid type and change schedule come from the transmission maker, so follow that guidance after install.
Is the 34042 a Level 2 converter?
Yes. The listing calls it a Nightstalker Level 2 converter.
Will the 34042 fit a late model GM automatic?
No. It is listed for the 1962-73 GM Powerglide only.