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409 Pistons Ross Forged 409 Chevrolet Piston Sets and Rings

ROSS Racing Chevy 409 Pistons are used in high performance, street car, muscle car, hot rod, street rod and 409 Chevrolet racing engines by knowledgeable engine builders the world over. They combine light weight, high strength, precision machining and premium materials to build forged 409 pistons you can depend on for high horsepower and durability.

ROSS Chevy 409 Pistons include forced pin oilers and double spirolox on all of their stocking pistons. Pistons are balanced to plus or minus 2.5 grams throughout the set. The valve pockets are designed to handle most camshaft applications. The skirt design allows the pistons to work properly under intense heat and tremendous side loads without scuffing or splitting cylinder walls. Most normally aspirated pistons are designed to operate at .004 piston skirt to cylinder wall clearance.

Ross 409 Chevrolet Piston Logo


Ross Forged Chevy 409 Pistons 409 Stroker Pistons and Piston Rings

Ross Chevy 409 Piston Chevrolet 409 Forged Piston Set

ROSS Chevy 409 pistons are ideal for street use, muscle car restorations, strip applications and more. They are suitable for nitrous system shots of up to 250 horsepower. Pins included are aircraft quality .990 diameter, 2.930 length, .150 wall, 149 gram weight, and are retained by double spirolox.

Ross Chevrolet 409 Pistons Chevy Stroker 409 Pistons

409 stock bore size is 4.3125 stock stroke is 3.500

Compression is based on stock heads and a 9.600" block height



Rod Length


Dome Height



Part #

4.342 .030 oversize

Ring grooves are 5/64 5/64 3/16

3.500 stock






ross 83561

4.342 .030 oversize

Ring grooves are 1/16 1/16 3/16

4.000 stroker pistons 6.135 10.5-1 .365 767 1.450 ross 83562

4.372 .060 oversize

Ring grooves are 1/16 1/16 3/16

4.000 stroker pistons 6.135 10.5-1 .360 781 1.450 ross 83563

Please feel free to use our compression ratio calculator

If you do not see the exact piston specs you want in the above Chevy 409 pistons list, we will be happy to help you with a custom 409 piston set. Custom Chevy 409 pistons can be made to your exact requirements. Please e-mail us and we will be happy to assist you with a custom piston order. We offer discounted pricing, even on custom pistons so please contact us for assistance with your custom piston needs and we will be happy to help.

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