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Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly
Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly

Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly

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Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly
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Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly
Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly
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Part # 9151205
$2,099.99
$2,203.99
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MAHLE Small Block Chevy 305 PowerPak Pistons
MAHLE Small Block Chevy 305 PowerPak Pistons
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Rotating assembly for your small block Chevy 305. Designed for use with Sprint Car racing applications (Racesaver 305), this kit comes with crankshaft, connecting rods, pistons, rings, and all bearings necessary.

Kit Includes:

  • Callies SAF113-CM Compstar S/B Chevy 4340 Forged Crankshaft, 5.7 Rod
    • Material is precisely located to yield the greatest advantage in terms of both strength to weight, and balance ability
    • Properly placed counterweights to improve balance and reduce bearing loads
    • Rough machined forgings in a process that includes double stress relief operations that make these crankshafts very dimensionally stable
    • Hardened with a deep nitride, Compstar cranks are ideal for all types of abusive racing environments
    • All rod journals are drilled and counterweights are profiled for piston clearance
    • With a consistent grind and polish, along with precise stroke and index, you will see why we say these crankshafts are Compstar correct
  • MAHLE Small Block Chevy 305 PowerPak Pistons
    • Race proven lightweight forged design that are complete with rings, wrist pins, and locks
    • Made from 4032 aluminum alloy to allow for tighter cylinder to wall clearances, and improved temperature stability
    • Forged piston for performance applications fully-machined crown
    • Grafal anti-Friction coating on skirts reduces drag, scuffing, friction and cylinder bore wear; reduces piston noise
    • Phosphate-coated pin bores and ring grooves to reduce micro-welding and pin galling
    • Pin bores finished on CNC boring equipment
    • Deburred
    • High strength, light weight steel pins
    • Race proven round wire locks
    • Low drag ring pak
    • Lightweight slipper kirt forgings
    • 1.5, 1.5, 3.0mm file fit performance ring set included. For 305 c.i. S/B Chevy (3.736" bore x 3.48" stroke)
      • C/R 58cc:  10.0
      • C/R 64cc:  9.3
      • C/R 70cc:  8.7
  • King HP Series 1969-Up Small Block Chevy Rod Bearings
    • S/B Chevy Large Journal 2.100" Rods
    • Bi-metal aluminum silicon alloy featuring fine micro-bore finish
    • Mains and rods are narrowed for large radius crankshafts
    • Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM
    • 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
  • King HP Series Chevy Main Bearings
    • Bi-metal aluminum silicon alloy featuring fine micro-bore finish
    • Mains and rods are narrowed for large radius crankshafts
    • Mains are 3/4 grooved for improved oiling to the rod journals
    • Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM
    • 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

Notes

  1. Phosphate coating provides the grey appearance to the Mahle piston. This dry lubricant coating (not to be confused with a thermal film coating) provides a lubricant film in the pin bores and ring grooves until the oiling system of the engine reaches operating pressure; particularly useful during the initial start-up or break-in of engines to protect against galling and microwelding. The piston crown is still machineable.
  2. The location to measure piston-to-wall clearance for each application. This point is calculated from the bottom of the piston skirt and indicates the widest part of the piston and thus where to measure.
  • Comp Height:  1.550" 
  • Pin Diameter:  .927"
  • Clearance Guide:
  • Meas. = 0.894
  • Min = 0.0025
  • Max = 0.0033
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.
  • Callies SAF113-CM S/B Chevy 350 Crankshaft, Compstar 4340, 5.7 Rod
    Qty x 1
  • Callies CSA5700DS2A2AH Compstar S/B Chevy 4340 H-Beam Rods, 5.7 Inch
    Qty x 1
  • MAHLE Small Block Chevy 305 PowerPak Pistons
    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

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