JE Pistons
JE Pistons 23-Degree 350/400 FSR Hollowdome GP Pistons - 301426L
JE Pistons 23-Degree 350/400 FSR Hollowdome GP Pistons - 301426L
Regular price
$256.99 USD
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$256.99 USD
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
23-Degree 350/400 FSR Hollowdome GP Pistons from JE Pistons. The part number and specifications are listed below. Worn rings show up as oil burning, blow-by and low compression.
Quick facts
- Brand: JE Pistons
- Part type: Piston
- Part number: 301426L
Specifications
- Optimal Dimensions: 4.125 inches, 4.000 inches
Tip: Check ring end gaps in the bore before installation and stagger the gaps.

Before you order: fitment and what to plan
Pistons and rings seal the combustion chamber and turn pressure into motion.
Fitment notes
- Engine: check the engine size listed against your vehicle's VIN or under-hood label.
- Specs, lead time and warranty come from JE Pistons and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentPlan the whole job
- Bearings. Rod and main bearings are usually replaced at the same time.
- Gasket set. The engine comes apart for this job.
More for your car: Pistons · All Pistons · Engine
Questions about pistons
Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Standard or oversize?
Standard fits an unmachined bore. Oversize is for a bored cylinder.
Where do specs and warranty details come from?
From JE Pistons. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.