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AMC Pistons | Wiseco Pro Tru Street Forged | AMC 360 Pistons | AMC 401 Pistons

Are you looking for high quality forged AMC pistons for your high performance AMC engine? On this page you will find forged AMC 360 pistons and AMC 401 pistons. These are premium quality forged AMC piston kits from Wiseco. A Wiseco Pro Tru Street series forged piston set will provide your AMC engine with improved all around performance. Your AMC engine will benefit from increased durability, torque and horsepower. These forged AMC pistons provide greater strength, less weight, better power and longer service life, all at a reasonable price.

Wiseco AMC Forged Pistons

wiseco AMC Pistons

AMC Performance Pistons & AMC Racing Pistons

Incorporating suggestions from many of today’s leading AMC performance engine builders, Wiseco is manufacturing flat top and reverse dome oversize 360 pistons and 401 pistons. These pistons include thicker decks and performance optimized piston ring lands.

These AMC pistons come with anti-friction skirt coatings, plasma moly piston rings, heavy duty wrist pins and pin retention clips. The pistons have symmetrical valve pockets which can accommodate oversized valves and high lift cams.

If you are building a high performance or racing AMC 360 or 401 engine, why risk using anything less than premium Wiseco forged AMC piston sets? In addition to our discounted prices you get technical assistance, dedicated customer service and top quality AMC performance parts for only a few dollars more than lower performance cast AMC pistons.

Wiseco Pro Tru Street Forged AMC Pistons and Ring Sets

Wiseco AMC Piston Kits Include and Feature:

  • Includes 8 4032 Alloy aluminum forged Flat Top pistons
  • Chromium alloy steel piston pins
  • spiro lock pin retention rings
  • premium piston ring set
  • oversize symmetrical radiused valve pockets allow use of high lift cams and big valves
  • pressure fed pin oiling
  • precision finished pin hole
  • ArmorGlide skirt coating for friction reduction and quieter operation.
  • stock wrist pin size, 360 = .930 and 401 = 1.000
  • We recommend the matching Molnar H beam AMC connecting rods for high performance and racing AMC engines.

AMC 360 Piston Sets

  • stock 360 standard cylinder bore size = 4.080
  • stock 360 crankshaft stroke = 3.440
  • stock 360 rod length = 5.875
  • stock 360 wrist pin size = .930
Bore Size Stroke Cubic Inches Rod Length Comp. Ht. Volume Compression Part # 
50cc 58cc
4.110, .030 oversize 3.440 365 5.875 1.590” -21cc 10 9.2


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4.125, .045 oversize 3.440 368 5.875 1.590” -21cc 10.1 9.3


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4.110, 030 oversize 3.440 365 5.875 1.590” Flat Top -8.6cc 11.6 10.5


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4.125, 045 oversize 3.440 368 5.875 1.590” Flat Top -8.6cc 11.7 10.6


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AMC 401 Piston Sets

  • stock 401 standard bore size = 4.165
  • stock 401 crank stroke = 3.680
  • stock 401 connecting rod length = 5.858
  • stock 401 wrist pin size = 1.000
Bore Size Stroke Cubic Inches Rod Length Comp. Ht. Volume Compression Part # 
50cc 58cc
4.195 .030 over 3.680 407 5.858 1.500” -27cc 10.3 9.5


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4.210 .045 over 3.680 407 5.858 1.500” -27cc 10.4 9.6


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4.195, .030 oversize 3.680 407 5.858 1.500”

Flat Top


12.7 11.5


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4.210, .045 oversize 3.680 407 5.858 1.500”

Flat Top


12.8 11.6


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Wiseco Performance Products has been a leader in the piston and performance parts industry for more than 60 years. Wiseco takes quality and performance seriously, so every Wiseco product is engineered and tested at their facility and in the field to insure that it will meet and exceed the expectations of our valued customers. More general Wiseco piston info available here: Wiseco Performance Pistons

We also offer custom AMC pistons for AMC stroker engines, supercharged, turbocharged, big nitrous engines, or other unique  AMC engine combinations that require different spec pistons than the shelf stocking sets listed here.

Molnar 4340 H-Beam Billet AMC Rod Sets

molnar AMC connecting rods

AMC Rods

Wiseco and Molnar Rods have pistons and rods that are well suited for anything from rock crawling to racing to muscle car restoration. The rods listed below are designed to work with the piston sets on this page, as well as to replace stock AMC parts in other applications.

AMC engines are known to be strong performers. With the intake, exhaust and camshaft systems available today, as well as nitrous, blowers, and turbos, it has become obvious there is a serious requirement for stronger AMC bottom end components. Molnar Technologies has taken a long look at the AMC original equipment rods and worked with AMC racers to design a dedicated rod that corrects OE geometry issues, while dramatically improving the bottom end strength of today’s high performance AMC engine builds. Molnar Technologies has designed an extremely strong and lightweight rod to handle the demands of modern high performance and racing AMC engines.

AMC 360 390 401 Rods

  • These rod sets come complete with 8 rods, 7/16" ARP 2000 rod bolts, installation instructions and assembly lube
  • Molnar AMC engine rod sets listed below have the correct AMC rod beam offset
  • C-C = Length of rod, center to center, in inches
  • Rod Jrnl = Crankshaft rod journal diameter in inches
  • Pin = Wrist pin size that rod is designed to work with
  • Wt = Weight of 1 rod, in grams
Description C-C Rod Jrnl Pin Wt Part Number
360 AMC stock length rods, stock wrist pin size 5.875 2.095 .930 633g


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390 and 401 AMC stock length rods with stock wrist pin size 5.858 2.248 1.000 653g


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If you can not find the AMC performance engine parts you need, or if you have questions, please contact us and we will be happy to help you.

More info on Molnar Technologies cranks and rods are available here: Molnar Technologies Racing Cranks and Racing Connecting Rods




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