Chevy Big Block V8 Chrome Steel Valve Cover Spreader Bars
Chevy Big Block V8 Chrome Steel Valve Cover Spreader Bars
SKU: SKU: SP7408
Low stock

Product Details
Features
- Chrome steel hold-down spreader bars distribute clamping force evenly
- Set includes (3) 4" bars and (4) 3" bars for one valve cover
- Fits Chevy Big Block V8 valve covers, 396–454 CID, 5/16" bolt hole
- Chrome finish adds a clean, dress-up look to hold-down hardware
Description
The Chevy Big Block V8 Chrome Steel Valve Cover Spreader Bars are hold-down hardware that distribute clamping force evenly across the valve cover gasket surface, helping reduce oil leaks caused by uneven pressure at individual bolt points. Chrome-plated steel construction adds a finished look to the hold-down hardware itself.
This set is sized for a 5/16" bolt hole and fits the Chevrolet Big Block V8 family — 6.5L/396, 6.6L/402, 7.0L/427, and 7.4L/454 CID — commonly found in the Chevrolet Chevelle, Camaro, Corvette, Impala, El Camino, Monte Carlo, and C10/C20 truck applications.
This is a set for a single valve cover, including three 4" spreader bars and four 3" spreader bars. Verify whether your valve cover uses a short-bolt or long-bolt pattern, along with gasket style and rocker arm clearance, before ordering.
Applications
Fits Chevrolet Big Block V8 valve covers, 396, 402, 427, and 454 CID, with a 5/16" bolt hole. Commonly used on the Chevrolet Chevelle, Camaro, Corvette, Impala, El Camino, Monte Carlo, and C10/C20 trucks.
Set Contents
Chrome steel hold-down bars: (3) 4" spreader bars and (4) 3" spreader bars — a complete set for one valve cover.
Specs
| Hold-Down Material | Steel |
| Hold-Down Finish | Chrome |
| Bolt Hole | 5/16" |
| Quantity | Set For Single Valve Cover |
| Includes | (3) 4" Spreader Bars(4) 3" Spreader Bars |
Engine Fitment
COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 ENGINES
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³
NOTES
• Verify short-bolt or long-bolt valve cover pattern, gasket style, and rocker arm clearance before installation.
• Set includes (3) 4" and (4) 3" spreader bars for a single valve cover, 5/16" bolt hole.
• Spreader bars help prevent gasket over-compression and warping between bolt-down points — verify bolt hole size matches your specific valve cover hardware.
COMMON VEHICLE APPLICATIONS
Chevrolet Chevelle / Camaro / Corvette
Chevrolet C10 / C20 / truck applications
Chevrolet Impala / El Camino / Monte Carlo
Q&A
What does this spreader bar set fit?
This spreader bar set fits Chevrolet Big Block V8 valve covers on 396, 402, 427, and 454 CID engines with 5/16-inch valve cover bolts.
How many spreader bars come in this set?
This kit includes three 4-inch spreader bars and four 3-inch spreader bars, providing enough hardware for one valve cover.
Do I need two sets for a complete engine?
Yes. This set covers one valve cover only, so a complete V8 engine requires two sets.
What do spreader bars do?
Spreader bars distribute clamping force more evenly across the valve cover flange, helping reduce gasket distortion and minimizing the risk of oil leaks caused by uneven bolt pressure.
What material and finish are these bars?
These spreader bars are manufactured from steel and feature a chrome-plated finish for durability and corrosion resistance.
Does this set affect emissions compliance?
No. This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
Chevy Big Block V8 Chrome Steel Valve Cover Spreader Bars
The Chevy Big Block V8 Chrome Steel Valve Cover Spreader Bars are hold-down hardware that distribute clamping force evenly across the valve cover gasket surface, helping reduce oil leaks caused by uneven pressure at individual bolt points. Chrome-plated steel construction adds a finished look to the hold-down hardware itself.
This set is sized for a 5/16" bolt hole and fits the Chevrolet Big Block V8 family — 6.5L/396, 6.6L/402, 7.0L/427, and 7.4L/454 CID — commonly found in the Chevrolet Chevelle, Camaro, Corvette, Impala, El Camino, Monte Carlo, and C10/C20 truck applications.
This is a set for a single valve cover, including three 4" spreader bars and four 3" spreader bars. Verify whether your valve cover uses a short-bolt or long-bolt pattern, along with gasket style and rocker arm clearance, before ordering.
Applications
Fits Chevrolet Big Block V8 valve covers, 396, 402, 427, and 454 CID, with a 5/16" bolt hole. Commonly used on the Chevrolet Chevelle, Camaro, Corvette, Impala, El Camino, Monte Carlo, and C10/C20 trucks.
Set Contents
Chrome steel hold-down bars: (3) 4" spreader bars and (4) 3" spreader bars — a complete set for one valve cover.
COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 ENGINES
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³
NOTES
• Verify short-bolt or long-bolt valve cover pattern, gasket style, and rocker arm clearance before installation.
• Set includes (3) 4" and (4) 3" spreader bars for a single valve cover, 5/16" bolt hole.
• Spreader bars help prevent gasket over-compression and warping between bolt-down points — verify bolt hole size matches your specific valve cover hardware.
COMMON VEHICLE APPLICATIONS
Chevrolet Chevelle / Camaro / Corvette
Chevrolet C10 / C20 / truck applications
Chevrolet Impala / El Camino / Monte Carlo
SPECIFICATIONS
Hold-Down Material: Steel
Hold-Down Finish: Chrome
Bolt Hole: 5/16"
Quantity: Set For Single Valve Cover
Includes: (3) 4" Spreader Bars(4) 3" Spreader Bars