DSS 3-FX Forged Piston and Ring Kit, Pontiac 301, 3.000" Str., 4.040" Bore, -14cc Dish Top, No Notch, Set/8, DSS-K3-6173-4040
DSS 3-FX Series Forged Pistons — Set of 8
-14cc Dish Top, No Notch
4.040" Bore / 3.000" Stroke
1.57" Compression Height
0.927" Pins Included
1.2 / 1.2 / 3.0mm DSS Ring Set Included
2618 with Extreme Duty XR pins and horizontal gas ports forging — fits Pontiac 301 cylinder heads
Description
DSS 3-FX Forged Pistons & Rings — Pontiac 301
4.040" Bore · 3.000" Stroke · -14cc Dish Top, No Notch · Set of 8 with Rings
The 3-FX is the top piston in the DSS line: the same 2618 platform as the 2-FX plus two upgrades built for serious cylinder pressure. Extreme Duty XR wrist pins handle the load where a standard pin starts to give ground, and horizontal gas ports route combustion pressure behind the top ring to hold ring seal at high boost and heavy nitrous.
This kit is machined for a 4.040" bore on a 3.000" stroke Pontiac 301 combination, with a 1.57" compression height and 0.927" pins included. Valve reliefs are CNC cut deeper and larger than OEM for aggressive cylinder head and camshaft packages, and the set ships with the matching DSS 1.2 / 1.2 / 3.0mm ring set.
Specifications
What You Get
- Eight forged DSS FX-series pistons, machined in the USA
- Matched DSS 1.2 / 1.2 / 3.0mm ring set
- 0.927" wrist pins and pin locks
- Extreme Duty XR wrist pins
- Patented "X Groove" skirt for cylinder and ring life
- Drilled, forced wrist pin oiling
- 2nd ring land accumulator groove to prevent ring flutter
- Diamond-turned high-strength skirts
Why this is sold as a kit: DSS FX-series pistons are cut for a metric 1.2 / 1.2 / 3.0mm ring pack, not the 1/16 or 5/64 rings most Pontiac builders have on the shelf. Butler sells these only as a complete K kit with the correct DSS ring set included — we do not sell the pistons bare, because the wrong ring pack in a metric groove is a ruined short block.
Before you order: confirm your finished bore, chamber volume and deck height. Compression height determines where this piston sits in the hole — on a stroker combination the block deck almost always needs to be cut to get the piston where it belongs. Custom and made-to-order pistons are not returnable.
Forged and machined in the USA by DSS Racing. Sold as a set of eight with rings. Please allow lead time on made-to-order bores.
Not sure this is the right piston for your combination? Call the Butler tech line at 866-762-7527 with your block, heads, chamber volume and target compression, and we'll confirm the fit before you buy.
Details
- DSS-K3-6173-4040
- DSS-K3-6173-4040
- DSS Racing
- Ships in 7-10 Business Days
- New
Categories
Shipping Information
- Item Requires Shipping
- 16.0 lbs.
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