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Speedmaster PCE281.2091 LS3 L92 L76 Cylinder Heads 250cc 64cc Assembled

(Chevrolet Silverado 1500 2009-24, Camaro 2010-23, Corvette 2008-24, Tahoe 2008-09, 2018-23, Suburban 2019-23, SS 2014-17 + 17 more models)

Manufacturer

Picture for manufacturer Speedmaster

Part Number

PCE281.2091
8 reviews
Sale Price

$1,096.51

In Stock (10)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Speedmaster PCE281.2091 assembled cylinder heads are engineered for Chevy GM LS3, L92, and L76 engines, delivering superior performance for modern LS-platform builds. These complete heads feature 250cc intake runners and 64cc combustion chambers, providing excellent flow characteristics and compression optimization for street and performance applications.

Key Features:

  • 250cc intake runner volume for improved airflow and power
  • 64cc combustion chamber volume for optimal compression ratios
  • Gravity casting process ensures uniform, robust construction
  • Hydraulic roller lifter compatible design
  • Fully assembled with valvetrain components installed
  • Maximum valve lift capacity: 0.625 inches
  • Coil bind clearance: 1.180 inches
  • Valve spring seat pressure: 335 lbs at open position
  • Installed spring pressure: 140 lbs at 1.8 inches (intake and exhaust)

Speedmaster's gravity casting process creates a superior foundation compared to standard manufacturing methods, resulting in stronger, more consistent castings. These heads are designed as direct replacements for GM LS3, L92, and L76 cylinder heads, offering performance enthusiasts an upgraded option for naturally aspirated and mild boost applications. Each head arrives fully assembled and ready for installation, saving time and ensuring proper valvetrain setup.

Products specifications

Fits

Chevrolet Silverado 1500 2009-24, Camaro 2010-23, Corvette 2008-24, Tahoe 2008-09, 2018-23, Suburban 2019-23, SS 2014-17, Silverado 1500 LTD 2022, Cheyenne 2014-23, Cheyenne Nueva 2022; GMC Yukon XL 1500 2007-14, Sierra 1500 2007-24 + 12 more models

Machined for O-Ring

No

Damper Spring Included

Yes

Cylinder Head Style

Assembled

Oiling Style

Through pushrod

Exhaust Valves Included

Yes

Steam Holes Drilled

No

Accessory Bolt Holes Drilled

Yes

Number of Springs Per Valve

Dual

Cylinder Head Finish

Natural

Valve Guides Included

Yes

Intake Port Location

Standard

Valve Seats Machined

Yes

Quantity

Sold as a pair.

Valve Seat Machine Style

3-angle

Intake Valves Included

Yes

Exhaust Port Location

Standard

Valve Cover Mounting Style

Perimeter bolt

Best price, fast delivery

Fast and easy

Easy to navigate the website.

Good if it arrives as promised

Your site said "free shipping", yet charged me shipping. And yes I saw all the selections, not only didn't I select any, but it also didn't let me select any. And o e the final page it selected one for me! Not cool! Shane-O

best price for a propeller on the internet and shipping was fast. happy customer

Incrediblely fast shipping and best price I could find for the helmet. Very pleased!

Delivered pretty fast

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