Site Information

 Loading... Please wait...
  • Image 1

Supertech Forged Aluminum Pistons 4B11T (Gasket 1.2mm-Deck Heigh 0) 9:1

0 Star Rating

Buy in bulk and save


Supertech Forged Aluminum Pistons 4B11T


Our pistons are manufactured from extruded high silicon, enhanced 4032 alloy (with additional Cu, Ni & Mg) that has low thermal expansion, excellent wear resistance and higher thermal conductivity. Our pistons with this alloy have withstood up to 42psi of turbo boost, with alcohol, without any problems.

A 2 or 3 forging steps process yields a fine structural grain oriented in fibers in the same direction of the stresses.

Several heat treatments provide the piston with a high tensile strength and evenly distributed hardness. The pistons are submitted to several machining steps in specially designed machines and in conventional CNC. machines with special diamond tools for dimensional precision, perpendicularity and flatness of the ring grooves. Contact reduction grooves are standard. Honed & reamed pin bores for precise fit.

Wrist pins are constructed of cold extruded chrome moly steel for high strength to be used with wire clip locks.


Bore Over Size Comp Ratio Volume CCs Head CCs Comp Height Stroke Rod Length Pin Diam Weight Piston P/N Ring P/N Note
86.0mm Std 9:1 -4.6 49 33.3mm 86mm 143.75mm 23mm 335gr P4-MIX86-CR9 GNH-8600 T/N
86.50mm +0.5mm 9:1 -4.6 49 33.3mm 86mm 143.75mm 23mm 342grs P4-MIX865-CR9 GNH8650 T/N





This product hasn't received any reviews yet. Be the first to review this product!

Write Review