Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Valve Cover Adapter for Center Bolt Heads

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Gasket(s) Included:
Hardware Included:
Made to mount "perimeter" style valve covers on '86-newer heads.
Valve Cover Adapter for Center Bolt Heads

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Please NOTE the following about this product:

  • This item is sold as a pair.



Q & A

What's in the Box

As you know, you can't run a stud girdle when using centerbolt valve covers. These handy adaptors simply bolt to your centerbolt heads which allows you to use standard valve covers and stud girdles. O-ring seal on head side. Use standard gasket on valve cover side. Has bolt holes to use with early '60-'86 "straight bolt" valve covers as well as '55-'59 staggered bolt valve covers.

We also carry adaptor plates (# 910-17145) to put '87 and newer center-bolt valve covers on '60-'86 heads.

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Speedway Illustration (GIF)


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Replacement O-Ring for Center Bolt Valve Cover Adapter
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  • Nitrile o-ring
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  • Sold each