Chrome Steel 4 3/16" Y-Top Valve Cover Fastener with 5/16"-18 Thread
Chrome Steel 4 3/16" Y-Top Valve Cover Fastener with 5/16"-18 Thread
SKU: SKU: SP7501
Out of stock

Product Details
Features
- Y-top pull-apart design separates for easier install in tight-clearance spots
- 5/16"-18 thread fits Pontiac & Ford Big Block valve cover applications
- Chrome steel construction for a clean, classic engine bay look
- 4-3/16" overall length fits standard valve cover hold-down clearance
Description
Secure your Pontiac or Ford Big Block valve cover with this chrome steel Y-top pull-apart wing nut fastener, sized for a 5/16"-18 thread — less common than the 1/4"-20 thread used on many small block applications, so verify your valve cover's fastener thread size before ordering.
The pull-apart design separates into two pieces — letting you thread the lower section into place first, then attach the Y-top for hand-tightening — which can make installation easier in tight-clearance spots than a one-piece fastener. This is a single fastener, 4-3/16" overall length with a 1" thread length — sold individually, so confirm how many you need per valve cover before ordering. Washers and hold-down tabs are not included.
Applications
Fits 5/16"-18 thread valve cover applications, commonly used on Pontiac V8 and Ford Big Block V8 valve covers.
Installation
The pull-apart design separates into two pieces, so you can thread the lower section into place first, then attach the Y-top for hand-tightening — useful in tight-clearance installs. Verify your valve cover's fastener thread size before ordering — 5/16"-18 is less common than 1/4"-20 on many small block applications. Washers and hold-down tabs are not included.
Specs
| Fastener Style | Wing Nut |
| Fastener Material | Steel |
| Fastener Finish | Chrome |
| Fastener Nut Style | Y-Top Pull-Apart |
| Overall Length | 4 3/16" |
| Thread Length | 1" |
| Thread Size | 5/16"-18 |
| Washers | Not Included |
| Hold-Down Tabs | Not Included |
| Quantity | Single |
Engine Fitment
COMPATIBLE WITH
5/16"-18 thread valve cover fastener — commonly used on Pontiac V8 and Ford Big Block V8 valve covers
NOTES
• Steel construction, chrome finish, Y-top pull-apart wing nut style, 4-3/16" overall length, 1" thread length, 5/16"-18 thread.
• Sold as a single unit — confirm quantity needed per valve cover before ordering.
• Washers and hold-down tabs not included.
• Verify your valve cover's fastener thread size before ordering, since 5/16"-18 is less common than 1/4"-20 on many small block applications.
COMMON VEHICLE APPLICATIONS
Pontiac V8 valve cover applications
Ford Big Block V8 valve cover applications
Q&A
Will this fit my Pontiac 400 valve cover?
Yes, provided your Pontiac valve cover uses a 5/16"-18 hold-down thread. Verify your existing hardware before ordering.
What does "pull-apart" mean for this fastener?
The fastener separates into two pieces: a lower threaded section that installs into the valve cover first and a Y-top that attaches afterward. This can make installation easier in areas with limited clearance.
Will this fit a Small Block Chevy valve cover?
Only if the valve cover uses a 5/16"-18 thread. Many Small Block Chevy applications use 1/4"-20 hardware, which is not compatible with this fastener.
How many of these do I need for one valve cover?
This fastener is sold individually, not as a set. Count your valve cover's hold-down points to determine the quantity needed.
Does this come with washers or hold-down tabs?
No. Washers and hold-down tabs are not included.
What thread size is this fastener?
5/16"-18 with a 1" thread length.
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
Chrome Steel 4 3/16" Y-Top Valve Cover Fastener with 5/16"-18 Thread
Secure your Pontiac or Ford Big Block valve cover with this chrome steel Y-top pull-apart wing nut fastener, sized for a 5/16"-18 thread — less common than the 1/4"-20 thread used on many small block applications, so verify your valve cover's fastener thread size before ordering.
The pull-apart design separates into two pieces — letting you thread the lower section into place first, then attach the Y-top for hand-tightening — which can make installation easier in tight-clearance spots than a one-piece fastener. This is a single fastener, 4-3/16" overall length with a 1" thread length — sold individually, so confirm how many you need per valve cover before ordering. Washers and hold-down tabs are not included.
Applications
Fits 5/16"-18 thread valve cover applications, commonly used on Pontiac V8 and Ford Big Block V8 valve covers.
Installation
The pull-apart design separates into two pieces, so you can thread the lower section into place first, then attach the Y-top for hand-tightening — useful in tight-clearance installs. Verify your valve cover's fastener thread size before ordering — 5/16"-18 is less common than 1/4"-20 on many small block applications. Washers and hold-down tabs are not included.
COMPATIBLE WITH
5/16"-18 thread valve cover fastener — commonly used on Pontiac V8 and Ford Big Block V8 valve covers
NOTES
• Steel construction, chrome finish, Y-top pull-apart wing nut style, 4-3/16" overall length, 1" thread length, 5/16"-18 thread.
• Sold as a single unit — confirm quantity needed per valve cover before ordering.
• Washers and hold-down tabs not included.
• Verify your valve cover's fastener thread size before ordering, since 5/16"-18 is less common than 1/4"-20 on many small block applications.
COMMON VEHICLE APPLICATIONS
Pontiac V8 valve cover applications
Ford Big Block V8 valve cover applications
SPECIFICATIONS
Fastener Style: Wing Nut
Fastener Material: Steel
Fastener Finish: Chrome
Fastener Nut Style: Y-Top Pull-Apart
Overall Length: 4 3/16"
Thread Length: 1"
Thread Size: 5/16"-18
Washers: Not Included
Hold-Down Tabs: Not Included
Quantity: Single