Load image into Gallery viewer, 3-3871-4030  Boss 302 Small Block Ford 289 - 302 3-FX Series -13cc Dish Top Boss/Canted  Forged Piston Set. 4.030 bore
Load image into Gallery viewer, 3-3871-4030  Boss 302 Small Block Ford 289 - 302 3-FX Series -13cc Dish Top Boss/Canted  Forged Piston Set. 4.030 bore
Load image into Gallery viewer, 3-3871-4030  Boss 302 Small Block Ford 289 - 302 3-FX Series -13cc Dish Top Boss/Canted  Forged Piston Set. 4.030 bore

SKU: 3-3871-4030

3-3871-4030 Boss 302 Small Block Ford 289 - 302 3-FX Series -13cc Dish Top Boss/Canted Forged Piston Set. 4.030 bore

Regular price $939.95
Sale price $939.95 Regular price
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Ships in 1 - 8 days

Made in the USA

Made in the USA

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This is a pre order item. We will ship it when it comes in stock.

Boss 302 Small Block Ford 289 - 302 3-FX Series 2618 Alloy Comp Hgt: 1.535" -13cc Dish Top Boss/Canted Pin: .912 Ring Grooves: 1.2/1.2/3MM Stroke: 3.000" Rod: 5.155" Forged and Machined in Saint Charles Illinois USA! Boost and NOS Ready! (Moderate to Extreme Levels) Aprox Comp Ratio: 58cc-8.90, 61cc-8.61, 64cc-8.34

Engine Brand: Ford

Engine Family: Small Block Ford 289 - 302

Engine Size: Boss 302

With/Without Rings: Without Rings

Cylinder Bore Size: 4.030 in - 102.28 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.535"

Pin Diameter: .912

Connecting Rod Length: 5.155"

Crankshaft Stroke: 3.000"

Piston Series: 3-FX Series

Alloy: Forged 2618

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 8.190

Piston Top Aprox. Comp. Ratio:

-13cc Dish Top Boss/Canted
ChamberComp. Ratio
58cc8.90 to 1
61cc8.61 to 1
64cc8.34 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Ford

Engine Family: Small Block Ford 289 - 302

Engine Size: Boss 302

With/Without Rings: Without Rings

Cylinder Bore Size: 4.030 in - 102.28 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.535"

Pin Diameter: .912

Connecting Rod Length: 5.155"

Crankshaft Stroke: 3.000"

Piston Series: 3-FX Series

Alloy: Forged 2618

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 8.190

Piston Top Aprox. Comp. Ratio:

-13cc Dish Top Boss/Canted
ChamberComp. Ratio
58cc8.90 to 1
61cc8.61 to 1
64cc8.34 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature