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Build a properly matched suspension or steering setup with this QA1 crossmembers. Manufacturer part number 7740-374 is offered in the listed 63-87 C10 LS Engine Mount Kit configuration, so vehicle application, mounting position, dimensions, spring rate, adjustment range, and all notes must be confirmed before ordering.
Key Features
- Heavy-Duty Steel Construction: CNC-machined components with black powder coat finish resist corrosion and withstand extreme racing and street abuse.
- LS Engine Specific Design: Optimized motor height and positioning for Gen III/IV LS engines including 4.8L, 5.3L, 6.0L and 6.2L variants.
- Made in the USA: Precision manufactured in Lakeville, MN for unmatched quality in every performance part.
- Kit includes pair of mounts with urethane bushings and hardware.
- Innovative in-house carbon fiber driveshafts and high-performance components for drag racing, circle track and street rods.
- 83,000 sq ft manufacturing facility produces American-made suspension and driveline parts.
Fitment
| Years | Make | Model | Submodel or Application |
|---|---|---|---|
| 1963-1974 | Chevrolet | C10 Pickup | All listed configurations unless otherwise noted |
Confirm chassis configuration, suspension position, drivetrain clearance, brake package, wheel and tire clearance, and every current QA1 application note.
Specifications
| Brand | QA1 |
|---|---|
| Manufacturer Part Number | 7740-374 |
| Product Type | Crossmembers |
| Listed Configuration | 63-87 C10 LS Engine Mount Kit |
| Compatibility Basis | Vehicle Specific |
| Condition | New |
What's Included
One new QA1 crossmembers identified by manufacturer part number 7740-374, with only the components and hardware supplied by QA1 for that exact part number.
About QA1
QA1 develops suspension, steering, driveline, rod-end, bearing, spring, and chassis components for street, performance, racing, restoration, and custom vehicle applications.
Related QA1 Products
- Shop all QA1 products
- QA1 73-87 C10 Small Block/Big Block Engine Mount Kit w/ QA1 Crossmember
- QA1 67-72 C10 Small Block/Big Block Engine Mount Kit w/ QA1 Crossmember
- QA1 79-04 Ford Mustang LS K-Member Engine Mount Kit
Frequently Asked Questions
Will QA1 7740-374 fit my 1963-1974 Chevrolet C10 Pickup?
Match the complete fitment row, then verify mounting position, suspension configuration, drivetrain clearance, brake package, wheel and tire clearance, and every current QA1 note.
What measurements matter when ordering QA1 7740-374?
Verify the dimensions and interfaces named in this listing, including thread size and direction, extended and compressed length, bore, spring dimensions or rate, mounting style, and available clearance as applicable.
Does QA1 7740-374 require setup after installation?
Suspension and steering work commonly requires torque verification, clearance and travel checks, ride-height or damping setup when adjustable, and a professional alignment before road use.
Installation
Follow the current QA1 instructions for this exact part number. Support the vehicle safely, compare every component before disassembly, use the specified hardware and torque values, verify thread engagement and mounting orientation, cycle the suspension through its operating range, check brake and wheel clearance, and complete an alignment when the installation changes suspension or steering geometry.
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