Application Fitment: Designed for 1987-up small block Chevy heads using tall centerbolt valve covers for a clean, secure installation, Thread Specifications: 1/4"-20 thread pitch ensures proper engagement with factory-style cylinder head mounting points, Precision Dimensions: Measures 5.13" overall length with a 4.88" under-head length and .50" overall diameter, Quality Construction: Polished stainless steel offers long-lasting durability and an attractive, finished appearance, Fastener Design: Countersunk Allen head provides a flush fit and clean look while allowing easy installation and removal
Bolts for Tall Centerbolt Chevy Valve Covers Speedway Motors
Bolts for Tall Centerbolt Chevy Valve Covers
Sku # 91017159
Mfr. Part # 91017159
Condition
New
Brand
Speedway Motors
Sold
Set
Details

For 1987-up small block Chevy heads with "tall" valve covers.

Item Details

Countersunk Allen Head
Specs
MFG. Part #
91017159
Overall Length
5.13"
Under Head Length
4.88"
Thread Length
1.00"
Thread Pitch
1/4"-20
Material Type
Stainless Steel
Finish
Polished
Sold in Quantity
Set
Notes
Set of 8.
Reviews

As Expected

Rated
Product Rating
by BOOT on October 25, 2025

Summary: Not much to say bout valve cover bolts but they worked as expected

Yes, I recommend this product.

Very pleased that these bolts were available and in stock!

Rated
Product Rating
by Racer22 on September 20, 2023

Summary: These hard to find bolts worked just fine for tall circletrack valve covers. I'd like them even better if they had a standard head.

Yes, I recommend this product.

Would buy again

Rated
Product Rating
by Ron on December 15, 2021

Summary: Fit great

Yes, I recommend this product.

Great product for a good price

Rated
Product Rating
by Rattle Snake Jake on May 19, 2021

Summary: replaced stripped out valve cover bolts. worked great

Works good

Rated
Product Rating
by ?? on May 04, 2021

Summary: Works great

Yes, I recommend this product.

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Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.