AUTOTEC AMC 390,401 FORGED PISTON SET (PART #RTC-1000801)

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 AMC 390,401
CID/Ltr 393/6.4
Bore Inch 4.185
Bore mm 106.3
Stroke Inch 3.574
Stoke mm 90.78
Rod Length 5.858
Comp Dist 1.553
Crown Volume -20cc
CR 1 10.6 @ 54cc
CR 2 10.2 @ 58cc
CR 3 9.9 @ 60cc
Alloy 4032
Weight 570
Pin 1
Oil Rails Included N/A
Top Ring 1/16"
2nd Ring 1/16"
Oil Ring HT 3/16"
Piston Style Dish

More From This Category

MANLEY Piston, 1.125 in. Compression Distance, 4.035 in. Bore Size, Flat Top, Right, For Chevrolet SB, Each

MANLEY Piston, 1.125 in. Compression Distance, 4.035 in. Bore Size, Flat Top, Right, For Chevrolet SB, Each

$206.91

RaceTec Pistons, AutoTec, Pontiac 428, Flat Top, 0.04 Oversize, 4.160 Bore, 4.000 Stroke, 1.575 Comp

RaceTec Pistons, AutoTec, Pontiac 428, Flat Top, 0.04 Oversize, 4.160 Bore, 4.000 Stroke, 1.575 Comp

$1,313.54

KB Piston, 4 in. Bore, For Ford 302 Rod 5.090 Hollow Dome -14.7cc 2V, .STD Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Ford 302 Rod 5.090 Hollow Dome -14.7cc 2V, .STD Oversized, w/ Rings, Each

$1,150.95

ICON Piston, 4.233 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Ford 452FE Rod 6.490 Flat Top +7.5cc 2V, .037 Oversized, w/ Rings, Each

ICON Piston, 4.233 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Ford 452FE Rod 6.490 Flat Top +7.5cc 2V, .037 Oversized, w/ Rings, Each

$1,893.03

ICON Piston, 4.32 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Chrysler 505 Rod 7.100 Step Dish +26.7cc 2V, .055 Oversized, w/ Rings, Each

ICON Piston, 4.32 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Chrysler 505 Rod 7.100 Step Dish +26.7cc 2V, .055 Oversized, w/ Rings, Each

$1,652.79

RaceTec Pistons, AutoTec, LS 15deg , Inverted Dome/Milled Dish, Oversize, 3.898 Bore, 3.622 Stroke,

RaceTec Pistons, AutoTec, LS 15deg , Inverted Dome/Milled Dish, Oversize, 3.898 Bore, 3.622 Stroke,

$1,313.54