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Manley Performance Small Block Chevrolet Piston 4.040

Manley Performance Small Block Chevrolet Piston 4.040

Regular price $107.06
Regular price $161.00 Sale price $107.06
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Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

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After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

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For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

- 2 Barrel Class

- 2618 high strength material

- Perfect ring groove to skirt squareness

- Round wire locks included

- Pressure balance groove

- Semi-banded skirt for improved skirt stability

- 2.300" x .095" wall Premium Chrome Moly pin

- Gas Ported .043" x .043" x 3mm RINGS

- Bore Size 4.040"

- Rod Length 6.200"

- Stroke 3.480"-3.500"

- Comp Distance 1.050"

- Piston & Pin wgt/grms 441

- Piston wgt/grms 369

Common Features

Dome Volume: -2.5cc
Crown Thickness: .155"
Compression Ratio: 10.6:1 w/ 64cc & 3.48" Stroke
Top Ring: 1/16" or .043" Gas Ported, .155" down
Second Ring: 1/16" or .043"
Oil Ring: 3/16" or 3mm
Valve Notches: .210" Int., .150" Exh.
Maximum Fly Cut: .270" Int., .170" Exh.
Max. Valve Sizes: 2.125" Int., 1.650" Exh.
Valve Angle: 22°
Pin Included: Premium Chrome Moly P/N 42241 ( .095" wall, 72 grams, 2.300" long, .927" dia. )
Round Wire Locks: P/N 42262 - .061" wide
Recommended Piston Clearance: .005" measured 1.100" from bottom of the oil ring

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