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Vehicle Info NeededSCATPART NUMBER: 942-1-42390
Chevy 454 4340 Forged Std Weight Competition Rotating Assembly 572ci
$2,72555$2869.00You Save$143.45
Ships on 09/21/2026
Lowest Price Guarantee454 Main Journals - 10.200'' Tall Deck Block572 Cubic Inch 4.500'' Crank Stroke 6.535'' Rod Length 2-Piece Rear Seal
- Chevy 454 4340 Forged Std Weight Competition Rotating Assembly
- 572ci
- 4.500'' Bore
- Premium Forged Dish Piston
- 8.8:1 w/112cc; 8.5:1 w/118cc; 8.2:1 w/124cc
- 4.500'' Crank Stroke
- 6.535'' Rod Length
- Unbalanced Assembly
NOTE: This Assembly Fits 10.200' Tall Deck Blocks Only.
This Unbalanced Complete Assembly Includes:
Pistons are a 1.395 Compression Height - Crankshaft
- Connecting Rods with Bushed Pin, ARP 7/16' x 1.400' 8740 Bolts
- Piston and Piston Rings
- Main & Rod Bearings
- Unbalanced Assembly DOES NOT Include Flexplate and Harmonic Damper.
Scat rotating assembly component parts are designed for the ultimate in performance. They take the ''guess work'' out of engine assemblies, just wash, Q.C. and assemble.
Complete Assembly Includes:
- 4340 Forged Standard Weight Crankshaft Without Center Counterweights
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- Pro Sport 4340 Forged H-Beam Connecting Rods with ARP 8740 7/16'' x 1.400'' Cap Bolts, Bushed Pin
- Forged or Premium Forged Pistons with Piston Rings
- Main and Connecting Rod Bearings
- External Balanced Rotating Assemblies Include Flexplate and Harmonic Damper
- Internal Balanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
- Unbalanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
- Crank/Rod/Piston Kits DO NOT Include Piston Rings, Main and Connecting Rod Bearings, Flexplate or Harmonic Damper
Part TypeEngine Rotating Assembly Kit
Product LineScat Chevy Big Block 4340 Forged Standard Weight Competition Rotating Assembly
BrandSCAT
Package Height14.0
Package Width19.0
Package Length26.0
Weight108.0 PG
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Piston And Ring Oversize0.03 in (0.8 mm)
Main Bearing Undersize (Mm)Stock
Wrist Pin StyleFloating
Connecting Rod Beam StyleH-beam
Rod Bearing Undersize (Mm)Stock
Piston Ring Facing MaterialPlasmamoly
Piston StyleDish, with single valve relief
Assembly Lubricant IncludedNo
Piston Head Volume (Cc)28
Gaskets IncludedNo
Rear Main Seal Style2-piece
Main Bearing Undersize (In.)Stock
Crankshaft IncludedYes
Piston Rings IncludedYes
Actual Engine Cid572
Engine Stroke4.5 in (114.3 mm)
Connecting Rod MaterialForged 4340 steel
Pistons IncludedYes
Rod Bearing Undersize (In.)Stock
QuantitySold as a kit
Main Bearings IncludedYes
Engine BalanceExternal
Rod Bearings IncludedYes
Connecting Rods IncludedYes
Oil Pump IncludedNo
Camshaft IncludedNo
Timing Chain And Gears IncludedNo
BalancedNo
Piston MaterialForged aluminum
Cam Bearings IncludedNo
Part FitmentSemi Universal
Plastigage IncludedNo
Lifters IncludedNo
Bore4.5 in (114.3 mm)
Vendor Part Number1-42390
Package Qty1
Package TypeEA
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![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
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