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Edelbrock 54903U LS Aluminum Race Block Standard Deck Bore - 4.125

Part of: Edelbrock Aluminum Block

Other options in this family: Edelbrock 54903U-904 Edelbrock 54901U Edelbrock 54901U-904

Manufacturer

Picture for manufacturer Edelbrock

Part Number

54903U
9 reviews
Sale Price

$6,904.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Edelbrock 54903U LS Aluminum Race Block is engineered for high-performance racing applications, delivering exceptional strength and reliability in a lightweight package. Constructed from aircraft-quality A357-T6 aluminum alloy, this race block provides superior durability while significantly reducing engine weight compared to factory iron blocks.

Key Specifications:

  • Standard deck height: 9.240 inches
  • Cylinder bore: 4.125 inches
  • Cylinder sleeve length: 5.87 inches
  • 6-bolt head design for improved clamping force and head gasket sealing
  • Siamese-cast cylinder walls with press-in cast iron sleeves for maximum rigidity
  • 12AN oil feed ports for dry sump oiling systems
  • Aircraft-quality A357-T6 heat-treated aluminum construction

This race block is designed for serious racing engines where weight reduction and structural integrity are critical. The Siamese cylinder bore design eliminates water jackets between cylinders, providing maximum support for high-cylinder pressures. The 6-bolt head design offers improved head gasket sealing over factory 4-bolt configurations, making this block ideal for forced induction and high-compression naturally aspirated applications.

Products specifications

Title

LS Aluminum Race Block Standard Deck 4.125 Bore

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Hands down best price I could find on the parts I needed. Shipping was super fast as well.

paid for 2 day delivery and took for days to receive after I was told could not ship to PO Box. That should tell you immediately when you type in ship to address on order form like all other business's do

So far, so good!

It was what I needed, and worked perfectly, great price

Timely delivery

Everything is great, I made a mistake and ordered the wrong part. I've been trying to return it and no one is getting back to me.

Website was easy to order from.

Only if your product works

Nice tires; Great price

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