AUTOTEC SMALL BLOCK CHEVY 23deg 4.125" FORGED PISTON SET (PART #RTC-1000203)

RaceTec AutoTec Forged Pistons

RaceTec's AutoTec line of forged pistons offers high-quality, precision manufactured options at competitive pricing. The primary material used for AutoTec pistons is 4032 high-silicone aluminum alloy which is extremely durable, has great wear resistance, a low expansion rate, and is very low in friction.

The most common applications for AutoTec pistons include muscle car restorations, performance street rods, as well as many spec racing classes. They can also withstand mild nitrous kits, small turbos, or superchargers. A large selection of sizes and styles is available. Choose the proper fit for your application build.

Additional features for most pistons in the AutoTec line:

  • CNC Precision machined ring grooves
  • Top ring land gas distribution groove to enhance performance and improve ring seal
  • Wrist pins, pin fitting, wire locks, broached pin oilers, and accumulator groove are included
  • Diamond turned skirts

SPECIFICATIONS
Engine Family Small Block Chevy 23deg 4.125"
CID/Ltr 400/6.6
Bore Inch 4.125
Bore mm 104.78
Stroke Inch 3.75
Stoke mm 95.25
Rod Length 5.7
Comp Dist 1.425
Crown Volume -23.3cc
CR 1 10.1 @ 58cc
CR 2 9.5 @ 64cc
CR 3 9.0 @ 70cc
Alloy 4032
Weight 480
Pin 0.927
Oil Rails Included N/A
Top Ring 1.5mm
2nd Ring 1.5mm
Oil Ring HT 3.0mm
Piston Style Dish

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