SB Chevy Rotating Assembly, 350 Flat Top-4 Valve Relief, 5.7 Rod

Speedway introduces rotating assembly engine rebuild kits, with an optional balance job. Includes 2-pc rear main seal cast steel crank, rods and pistons. Cranks are new so they use standard size bearings.

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.

Kits include:

• Speedway Cast Steel Crankshaft
  • Two-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
  • 5.7" length
  • Press pin
  • 646 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
  • C/R 58cc=10.9, 64cc=10.2, 76cc=9.0
    Piston/Pin Weight: 630 g
    Rod Length: 5.7"     

Item Details

Flat top, 4 valve relief
Ring style: A