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Forged Street Small Block Chevy 377 Rotating Assembly, 5.7 Inch Rods

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Specs
Sold in Quantity:
Kit
Main Journal Style:
400 mains
Rod Journal Diameter:
2.10"
Rear Main Seal Style:
2-piece
Piston Ring Style:
C
Connecting Rod Length:
5.700"
Piston Style:
Dish
Piston Material:
Forged Aluminum
Bearing Undersize:
Standard
Bearing Construction:
Bi-metal
Crankshaft Material:
Forged 4340 Steel
Connecting Rod Type:
I-Beam
Connecting Rod Material:
Forged 4340 Steel
Connecting Rod Bolt Diameter:
7/16"
Main Journal Diameter:
2.650
Narrowed Bearing:
Yes
Coated Bearing:
No
Stroke:
3.48
Wrist Pin Diameter:
.9272
Piston Weight:
541
Wrist Pin Weight:
132
Connecting Rod Weight:
590
Forged Street Small Block Chevy 377 Rotating Assembly, 5.7 Inch Rods

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Please note the following about this product:

  • This item is sold as a kit.

Details

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Q & A (3)

What's in the Box

Info

These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.

All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.

These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced.

All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours. 

Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.  Includes spacers for main bearings.

NOTE: Piston rings are not included and must be purchased separately.

Item Details

Includes spacers for main bearings

Notes

Kit includes:

  • Scat 4340 Forged Steel Crankshaft
    • Straight shot and chamfered oil holes
    • Nitride hardened and shot peened
    • Lightening holes in all rod throws
    • Large radius on all journals
  • Scat Pro Comp 4340 I-Beam Rods
    • Stroker clearanced
    • ARP 7/16" cap screw bolts
    • Bushed pin
    • 5.7" rod: 628 grams
    • Crank pin: 2.100"
    • Wrist pin: .927"
    • B.E. width: .940"
    • Set of 8 rods
  • KB Signature Series Forged Pistons
    • Dished
    • 2618 aluminum alloy construction
    • T-6 heat treated 
    • 4.000" bore pistons available in standard, .030, .040, or .060 sizes
    • 4.125" bore pistons available in standard, .030 or .040 sizes

 

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