1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
Load image into Gallery viewer, 1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
Load image into Gallery viewer, 1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
Load image into Gallery viewer, 1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore
Load image into Gallery viewer, 1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore

SKU: 1-3421-4000

1-3421-4000-Boss 302-Small Block Ford 289 - 302 FX1 Series -13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4 inch bore

$719.95
$719.95
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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 FX Comp Height: 1.3 -13cc Dish Top PIN: .927 Ring Groove: 1.2/1.2/3MM Stroke: 3 ROD: 5.4 Forged and Machined in Saint Charles Illinois USA! Boost and NOS Ready! (Moderate to High Levels) Comp Ratio: 58cc-8.81, 64cc-8.26, 70cc-7.78


Engine Brand: Ford

Engine Family: Small Block Ford 289 - 302

Engine Size: Boss 302

With/Without Rings: Without Rings

Cylinder Bore Size: 4.000 in - 101.52 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.300

Pin Diameter: .927

Connecting Rod Length: 5.400 in

Crankshaft Stroke: 3.000 in

Piston Series: 1 - FX Series

Alloy: Forged 4032

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 8.200000000000001

Piston Top Aprox. Comp. Ratio:

-13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber
ChamberComp Ratio
58cc8.81 to 1
64cc8.26 to 1
70cc7.78 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: 4.000 in - 101.52 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.300

Pin Diameter: .927

Connecting Rod Length: 5.400 in

Crankshaft Stroke: 3.000 in

Piston Series: 1 - FX Series

Alloy: Forged 4032

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 8.200000000000001

Piston Top Aprox. Comp. Ratio:

-13cc Dish Top 351 Cleveland \ Boss Open & Closed Chamber
ChamberComp Ratio
58cc8.81 to 1
64cc8.26 to 1
70cc7.78 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature