AUTOTEC SMALL BLOCK CHEVY 23deg 4.000" FORGED PISTON SET (PART #RTC-1000646)

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 4.000"
CID/Ltr 385/6.3
Bore Inch 4.04
Bore mm 102.62
Stroke Inch 3.75
Stoke mm 95.25
Rod Length 5.565
Comp Dist 1.55
Crown Volume -19.4cc
CR 1 10.1 @ 58cc
CR 2 9.5 @ 64cc
CR 3 9.0 @ 70cc
Alloy 4032
Weight 494
Pin 0.927
Oil Rails Included N/A
Top Ring 1.5mm
2nd Ring 1.5mm
Oil Ring HT 3.0mm
Piston Style Dish

More From This Category

MANLEY Piston, Extreme Duty, 1.375 in. Compression Distance, 85 mm Bore Size, -8cc Dish, For Mitsubishi Eclipse GS/GST, Set of 4

MANLEY Piston, Extreme Duty, 1.375 in. Compression Distance, 85 mm Bore Size, -8cc Dish, For Mitsubishi Eclipse GS/GST, Set of 4

$1,683.63

ICON Piston, 4.25 in. Bore, For Chevrolet 454 Rod 6.385 Flat Top +3cc 1V, .060 Oversized, w/ Rings, Each

ICON Piston, 4.25 in. Bore, For Chevrolet 454 Rod 6.385 Flat Top +3cc 1V, .060 Oversized, w/ Rings, Each

$1,840.87

ICON Piston, 3.78 in. Bore, 1.5mm, 1.5mm, 3.0mm in. Ring Grooves, For GM LS327 5.3L with 3.622 in. stroke, .030 Oversized, w/ Rings, Each

ICON Piston, 3.78 in. Bore, 1.5mm, 1.5mm, 3.0mm in. Ring Grooves, For GM LS327 5.3L with 3.622 in. stroke, .030 Oversized, w/ Rings, Each

$1,425.17

MANLEY Piston, 1.304 in. Compression Distance, 4.075 in. Bore Size, -18cc Dish, For Chevrolet LS, Each

MANLEY Piston, 1.304 in. Compression Distance, 4.075 in. Bore Size, -18cc Dish, For Chevrolet LS, Each

$236.53

MANLEY Piston, Custom, 98.5mm-108mm Bore Range, Dish, Flat Top, For Nissan, For Subaru, For Toyota, Each

MANLEY Piston, Custom, 98.5mm-108mm Bore Range, Dish, Flat Top, For Nissan, For Subaru, For Toyota, Each

$407.11

MANLEY Piston, Extreme Duty, For Toyota 5.7L 3UR-FE, Set of 8

MANLEY Piston, Extreme Duty, For Toyota 5.7L 3UR-FE, Set of 8

$3,367.32