Engines and Components Pistons and Piston Rings

Manley Performance

Manley Chevrolet Big Block Piston Set - 4.560in Bore 1.520in CH, -20.00 CC

$1,143.78

SKU: M004 696660-8

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item

Description

Manley Performance Chevrolet Big Block Piston Set. These are forged, 20cc dish pistons designed for a 4.560" bore and 1.520" compression height. They result in an 8.5:1 compression ratio. Intended for modified Chevrolet Big Block engines (Mark IV 396, 402, 427, 454 cubic inch, or aftermarket blocks) that have been bored out to 4.560 inches.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandManley Performance
Part NumberM004 696660-8

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy