4.125" 427 (351W) Windsor with Cleveland (Heads boss) Stroker Pistons, Dished Top, Forged 4032, Ford, -16.1cc, CH 1.235" (4.000" x 6.250") 9.5" Deck

Racetec / Autotec Forged Pistons Fits Ford 351 Windsor 427 Stroker Boss Pistons

4.125" Dished Top, Forged Pistons for 351 Winsor with 351 Cleveland Cylinder Heads

Stroker Combination: 427 Stroker Crank 4.000" x 6.250" Conrod

Racetec / Autotec Forged Pistons

RaceTec's AutoTec Ford 427 Windsor Stroker combination with Cleveland cylinder heads. 

These forged pistons are high-quality with precision machining and a great price. AutoTec pistons are manufactured from the low expansion, high wear, high silicone 4032 grade aluminium alloy. These Forged Cleveland pistons with the 4032 Forging, have excellent wear resistance with a low expansion rate and are extremely durable and long lasting. Best of all they are very low in friction and run a tighter piston to bore clearance which results in a quieter piston operation, especially on cold start-ups. 

Manufactured on forged side relief, 4032 low expansion, high silicon material excellent for street or strip applications. Has precision Diamond turned skirts.

• Suits Engine type:  351 Windsor 9.5" Deck Stroker with 351 Cleveland Cylinder Heads (Boss)
• Stroker Combination: 427 Stroker: Crank:4.000” x Conrod 6.250”
• Series: Autotec
• Wrist Pin Size: 0.927”  (Chevy + included)
• Piston Bore Size: 4.125"
• Piston Bore Oversize: +.125"
• Piston Top: Dished -16cc
• Stroker Piston: YES
• Piston Compression Height: 1.5"
• Rod Length: 6.250”
• Crankshaft Stroke: 4.000”
• Rings Size: 1.5mm, 1.5mm, 3.0mm rings
• Piston Rings included: NO
• Recommended Rings: 
  • AT-4125-H (Plasma-Moly Top & Cast Iron 2nd)
  • DRP-PRG4125-8 (Stainless Top & Napier 2nd)
• Rail Supports Included (when required) YES
• Piston Locks: Included – Wire Locks

Autotec pistons are made in California USA and are the street/strip version of Racetec Forged pistons.