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Light Forged S/B Chevy Assembly, 383 Flat Top, 6 Inch Rods
Light Forged S/B Chevy Assembly, 383 Flat Top, 6 Inch Rods

Light Forged S/B Chevy Assembly, 383 Flat Top, 6 Inch Rods

350 Chevy Small Block V8, 383 Chevy Small Block V8, 350 mains Main Journal Style

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Light Forged S/B Chevy Assembly, 383 Flat Top, 6 Inch Rods
Light Forged S/B Chevy Assembly, 383 Flat Top, 6 Inch Rods
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Part # 9153040
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What's In The Kit
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item 9153040 is made to order. It will be shipped from our warehouse when it is produced.

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MAHLE Forged Flat Top Pistons, SBC
MAHLE Forged Flat Top Pistons, SBC
Quantity: 1
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Main Journal Style:
350 mains
Engine Stroke:
Connecting Rod Type:
Connecting Rod Length:
Connecting Rod Material:
Forged 4340 Steel
Connecting Rod Weight:
605 grams
Connecting Rod Bolt Diameter:
Piston Style:
Flat Top
Piston Material:
Forged Aluminum
Piston Weight:
406 grams
Piston Ring Style:
Crankshaft Material:
Forged 4340 Steel
Rear Main Seal Style:
Wrist Pin Diameter:
Main Journal Diameter:
Rod Journal Diameter:
Bearing Construction:
Bearing Undersize:
Narrowed Bearing:
Coated Bearing:
MFG. Part #:
Sold in Quantity:


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 also 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 & 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
Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Scat 435062LW F43 S/B Chevy Crankshaft-3.75 Stroke-350 Main-2.10 Rod
    Qty x 1
  • Scat 26000716 Small Block Chevy 4340 I-Beam Rods, 6.0 Inch, Bushed Pin
    Qty x 1
  • King HP Series Chevy 350/400 Large Journal Engine Rod Bearings, Std
    Qty x 1
  • King HP Series Chevy 350 Large Journal Engine Main Bearings-Standard
    Qty x 1
  • Labor-Balance Rotating Assy
    Qty x 1
  • MAHLE Forged Flat Top Pistons, SBC
    Qty x 1

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