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Chevrolet Performance 12498778 - 454 C.I.D. HO Short Block Assemblies

The Chevrolet Performance 454 HO short block is a great starting point to build a strong 454 engine for your Hot Rod. They are the foundation for GM's 454/425 hp crate engines. The latest Generation 4-Bolt Main Block from Chevrolet has designed the water jackets to accpet both old style Mark 4 cylinder heades as well as the GEN 6 heads from GM.
Note: This short block does NOT include the camshaft, timing set, or lifters.


* GEN 6 4-bolt Main Block with Mechanical Fuel Pump Provisions
* 1053 Forged Steel 4.000" Stroke Crankshaft, Externally Balanced
* 4340 Forged Steel LS6/LS7 Style I-Beam Connecting Rods with 7/16" Rod Bolts
* Forged Aluminum Pistons (Approximate CR with 110cc Chamber is 9.5:1()
* GM 6-Quart Oil Pan
* GEN 6 Timing Cover
* GM 8" OD Harmonic Balancer
* 14" OD Flexplate
Shipping: Free Shipping in the 48-States, 1 to 3 Day Delivery to Most Locations
Pricing: $4,444.46

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Shipping Information

  • Item Requires Shipping
  • 300.0 lbs.
  • W27.0000” x H26.5000” x L30.5000”
  • Free Shipping in the 48-States, 1 to 3 Day Delivery to Most Locations

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