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Wiseco K0165X155 Ford 302/351 Windsor TFS Twisted Wedge -7.5cc Flat Top Forged Piston Kit 4.155in Bore

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

K0165X155
7 reviews
Sale Price

$821.42

Estimated ship date Wednesday, November 25

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Product Details

The Wiseco K0165X155 is a professional-grade forged piston kit designed for Ford 302 and 351 Windsor small block engines built with Trick Flow Specialties (TFS) Twisted Wedge cylinder heads. Featuring a -7.5cc flat top crown and a 4.155-inch bore, this kit delivers the precision and strength needed for high-performance street and racing engine builds. This is a Build on Demand item, custom-produced to your order.

Wiseco engineers these pistons from 2618 high-strength forged alloy, purpose-designed with dedicated valve pockets sized specifically for the TFS Twisted Wedge head's valve geometry. The ArmorGlide® skirt coating reduces friction and promotes proper break-in, while anti-detonation and pressure seal grooves in the ring lands protect against detonation damage at elevated compression ratios.

Key Specifications:

  • Bore: 4.155 in.
  • Compression Height: 1.165 in.
  • Stroke: 3.250 in.
  • Rod Length: 5.400 in.
  • Piston Volume: -7.5cc (Flat Top)
  • Skirt Type: Strutted
  • Wrist Pin: 0.927 in. × 2.500 in. (Pin #S424 — Included)
  • Ring Package: Premium 1.2mm / 1.2mm / 3.0mm GFX rings (Set #4067GFX — Included)
  • Material: 2618 High-Strength Forged Alloy
  • Skirt Coating: ArmorGlide®

Key Features:

  • Dedicated forgings with specially designed valve pockets for TFS Twisted Wedge heads
  • ArmorGlide® skirt coating reduces friction and improves break-in characteristics
  • Anti-detonation and pressure seal ring grooves for durability under high compression
  • Optimized skirt profile for superior piston-to-wall control
  • Precision CNC-machined ring grooves ensure consistent ring seal
  • Complete kit includes pistons, wrist pins, and GFX ring set
  • Engineered, forged, and machined in the USA

Compression ratio will vary based on deck height, head chamber volume, and gasket thickness. Wiseco provides compression ratio references at multiple chamber volumes to aid in engine planning.

Products specifications

Piston Quantity

8

Stroke

3.250

Wrist Pin Style

Floating

Make

Ford

Piston Material

2618

Wrist Pin Outer Diameter

0.927

Rod Length

5.400

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Bore Diameter

4.155

Compression Height

1.165

Industry

Automotive

Product Market

Domestic

Engine Type

ICE

Oil Ring Thickness

3.0

Wrist Pin Material

5115

Product Series

Professional

Product Type

Engine Piston Set

Forging Type

Slab Side

Out of Stock Message

Estimated Shipped Date 3-4 Weeks

Second Compression Ring Thickness

0.047

Top Compression Ring Thickness

0.047

EBAY Category ID

33623

Make - Web

Ford

Ring Set Included

Yes

Skirt Coating

Yes

Wrist Pin Included

Yes

Piston Volume

-7.50

Engine - Web

Small Block

Engine

Small Block 302

Title

Wiseco - Ford, Small Block 302, 4.155 in. Bore, Piston Set of 8

Title - Web

Professional Ford Small Block 302 Piston Set of 8 - 4.155 in. Bore - 1.165 .in CH, -7.50 CC

Great

Great price

good price

Delivery was quick.

Outstanding service. Just what I needed Cghftunnnbvv

Good availability.

I was very satisfied with TH Motorsports. They shipped my tires super quick, and they were exactly what I needed for my 370z. Thank you!

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