My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Manley 12817-8 Big Block Chevy Street/Drag Exhaust Valve 1.900"

Manufacturer

Part Number

12817-8
Sale Price

$301.07

2 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

With a 1.900-inch head diameter, these valves are engineered to meet the demands of high-performance street and strip applications, offering improved flow and durability over stock replacement valves.

Key Features:

  • Application: Big Block Chevy (BBC) engines
  • Valve Head Diameter: 1.900 inches
  • Series: Street/Drag (S/D) — designed for performance street and drag racing use
  • Manufacturer: Manley Performance — a trusted name in high-performance engine components
  • Engineered for superior heat dissipation, wear resistance, and high-RPM reliability
  • Built to withstand the elevated cylinder pressures and temperatures of performance-built BBC engines

Manley Performance has been a leading supplier of high-quality valvetrain components for decades. The Street/Drag valve line delivers a strong balance of longevity and performance, making these valves an excellent choice for enthusiasts building or rebuilding a high-performance Big Block Chevy engine. OEM Cross-Reference / Manley Part Number: 12817-8.

I've been looking for this item to protect my Dixon high pressure gauge and hope it fit.

It was great

I purchased "Carrand Whisk Broom 10'' W Label",after exhaustive research for this particular item...they have the BEST/LOWEST COST for this item anywhere!!<br><br>Shipped in a timely manner too!<br><br>Will do business here again in the future,as they have prices that are LOW,plus the great products are found here too.<br><br>Thanks to the staff for a great online shopping experience!

Lowest price on EBC brakes for my Subaru. Good speed on processing.

Placed order #27494 for some bumpstops. Came out $40 cheaper then i could get with reseller discounts elsewhere. Great item, shipped quick, very satisfied.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy