SB 383 Chevy Rotating Assem., One Piece, Flat Top-2 Valve, 6 In. Rod
Build Your KitYou're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
Speedway introduces forged rotating assembly engine rebuild kits, with an optional balance job. Includes new 1-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.
New one piece rear main cast steel crank. Standard size journals. Hyperuetectic piston set and Speedway Super Stock rods. ARP rod bolts.
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.
NOTE: Piston rings are not included and must be purchased separately.
Flat top, 2 valve relief
C/R 58cc=11.2, 64cc=10.1, 76cc=9.8
Piston/Pin Weight: 527 g
Rod Length: 6", Ring Style: C
- Scat Cast Steel Crankshaft
- One-piece rear main
- 80-60-06 cast steel construction
- Fatigue-resistant with near forged steel endurance
- Standard size journals
- Speedway 5140 I-Beam Claimer Connecting Rods
- 5140 heat treated steel
- Shot peened and magnafluxed
- Press pin
- 6.0" length
- 585 grams
- KB Signature Series Hypereutectic Claimer Pistons
- Coated skirts
- Wrist pin lock rings
- T-5 hypereutectic construction
- Can be used with press fit or floating wrist pins
What's In The KitEach 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 935060L 383 Chevy Cast Steel Crankshaft, 1-Piece Main, 6.0 RodPart # 91513756Qty x 1
Small Block Chevy 5140 Steel I-Beam Rods, 6.0 Inch, Press PinPart # 91015324Qty x 1
KB Claimer Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 RodPart # 4749909Qty x 1
King HP Series Chevy 350/400 Large Journal Engine Rod Bearings, StdPart # 910807HP-STDQty x 1
King HP Series Chevy 350 Large Journal Engine Main Bearings-StandardPart # 910557HP-STDQty x 1
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