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Product Summary

350, 383, 350 mains Main Journal Style, Balanced

  • For 350 and 383 Chevy small block V8's
  • 11.3:1 compression
  • Kit includes pistons, I-beam rods, forged steel crankshaft, and main & rod bearings
  • 6" connecting rod length
  • Forged aluminum pistons

Comes as a Kit

Key Specs

MFG. Part #9153040
BrandSpeedway Motors
Connecting Rod TypeI-Beam
Piston StyleFlat Top
Piston MaterialForged Aluminum

Need To Know

This Product Will Ship Free

Made to Order

This custom item will ship when completed

Quick and Easy Returns

Details

Our lightweight forged rotating assembly engine rebuild kits include a 45-46 lb. Scat Superlight 4340 forged 2-pc rear main seal internally balanced crankshaft, Scat 4340 forged I-beam connecting rods and Mahle pistons complete with wrist pins, locks and rings. Rod and main bearings included. Standard size journals.

Kit includes balancing which is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience.  A kit will ship in 24-48 hours.

 

 

Item Details

Flat top, 406 g
Comp. 64cc: 11.3
Ring Style: E

Kit includes:

  • Scat 4340 Lightweight Forged Steel Crankshaft
    • Standard size journals
    • Profiled aero-wing counterweights
    • Pendulum cut to reduce rotating mass
    • 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
    • Set of 8 rods
    • 6.0 " rod: 629 grams
    • Crank pin: 2.100 "
    • Wrist pin: .927 "
    • B.E. width: .940 "
  • Mahle PowerPak Forged Pistons
    • Lightweight slipper skirt design
    • Phosphate coated
    • Grafel anti-friction skirt coating
    • 4.000 " bore pistons available in standard, .030, .040, or .060 sizes
    • 4.125 " bore pistons available in standard, .030 or .040 sizes
    • Set of 8 pistons
    • Includes low drag rings, lightweight wrist pins and round wire locks
  • King HP Series Main and Rod Bearings
    • 0.015 " thick top layer for superior macro particle embedability and conformability
    • 40 Vickers hardness to resist overlay migration and extrusion
    • 450°F heat threshold for superior protection against friction and overheating
    • Mains are 3/4 grooved for improved oiling to the rod journals
    • Bi-metal aluminum silicon alloy featuring fine micro-bore finish

Kit includes:

  • Scat 4340 Lightweight Forged Steel Crankshaft
    • Standard size journals
    • Profiled aero-wing counterweights
    • Pendulum cut to reduce rotating mass
    • 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
    • Set of 8 rods
    • 6.0 " rod: 629 grams
    • Crank pin: 2.100 "
    • Wrist pin: .927 "
    • B.E. width: .940 "
  • Mahle PowerPak Forged Pistons
    • Lightweight slipper skirt design
    • Phosphate coated
    • Grafel anti-friction skirt coating
    • 4.000 " bore pistons available in standard, .030, .040, or .060 sizes
    • 4.125 " bore pistons available in standard, .030 or .040 sizes
    • Set of 8 pistons
    • Includes low drag rings, lightweight wrist pins and round wire locks
  • King HP Series Main and Rod Bearings
    • 0.015 " thick top layer for superior macro particle embedability and conformability
    • 40 Vickers hardness to resist overlay migration and extrusion
    • 450°F heat threshold for superior protection against friction and overheating
    • Mains are 3/4 grooved for improved oiling to the rod journals
    • Bi-metal aluminum silicon alloy featuring fine micro-bore finish

Specifications

KEY SPECS
MFG. Part #9153040
BrandSpeedway Motors
Connecting Rod TypeI-Beam
Piston StyleFlat Top
Piston MaterialForged Aluminum
GENERAL
Main Journal Style350 mains
Engine Stroke3.750"
Connecting Rod Length6.000"
Connecting Rod MaterialForged 4340 Steel
Connecting Rod Weight605 grams
Connecting Rod Bolt Diameter7/16"
Piston Weight406 grams
Piston Ring StyleE
Crankshaft MaterialForged 4340 Steel
Rear Main Seal Style2-piece
Wrist Pin Diameter.9272"
Main Journal Diameter2.448"
Rod Journal Diameter2.10"
Bearing ConstructionBi-metal
Bearing UndersizeStandard
Narrowed BearingYes
Coated BearingNo
BalancedYes
Sold in QuantityKit