Sport-Series pistons are Made in the USA by our partner Racetec Pistons. These pistons are machined from 2618 Alloy forgings, not the more fragile 4032 Alloy like some other companies offer. Many features originally developed in our race winning engine programs have trickled down and and are standard features in these Sport Series pistons.
Standard features:
Extra deep valve reliefs are VCT & Hi-Lift Cam friendly
Valve reliefs fit oversize valves upto 37.5/31mm
Optimized 1.136" (28.85mm) compression height
827" (21mm) wristpins
H.D. extra thick Wire-Loc's
Use 1mm, 1.2mm, 2.8mm ring sets
Bore size options:
87.5mm (standard)
87.578mm (allows a good torqueplate hone)
87.91mm (-.003" under 88mm) for blocks that require a large amount of cleanup
88mm (for blocks that require a large amount of cleanup)
Compression Ratio Options:
8.5:1 & 9.5:1 for Turbo/ Supercharger use
10.7:1 for Pump Gas normally aspirated, nitrous, and low boost engines
12:1 for big cam Premium Pump Gas or E85 normally aspirated or nitrous engines
13:1 for 100 octane or E85 normally aspirated engines
*** Some SPORT SERIES 2.3L pistons require 3 weeks manufacturing lead time. For current availability call or e-mail us before ordering ***
