SPORT CAMS (STG 1 VCT Cam Set)
$649.99
2.5L Duratec "Long Rod" Pistons (89.078mm Bore)
$779.99
Not sure it fits your engine? Call 909-539-0544 or send us a message.
Ships by UPS or FedEx. Rates are shown at checkout.
Please confirm stock on large orders. Availability can change quickly.
These pistons are replacements for our 2.5L Long Rod & Piston kits!
Valve Reliefs:
Valve Reliefs fit up-to 37.5mm intake valves and 31mm exhaust valves.
Valve relief depths work with all of our cams, even our Stage 5 VCT cams with full range of variable cam function!
Compression Ratio Options:
10.5:1 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
13.5:1 for 100 octane or E85 normally aspirated engines
14.5:1 for 110 octane normally aspirated engines
Forged 2618 Piston specs:
Compression Height: 1.080" (27.432mm)
Piston volume:
10.5:1 = -15.5cc
12:1 = -7cc
13.5:1 = -.5cc
14.5cc = +5cc
Wristpin Dimensions: .886" (22.5mm) x 2.250" x .150" wall
Wristpin retention type: Wire Loc's
Ring groove dimensions: 1mm, 1.2mm, 2.8mm
Rings sold separately! We offer both NPR nitrided steel file-fit and Total Seal Gapless ring to suit these pistons.
*** While we do our best to keep these pistons on the shelf in the more common sizes and compression ratios, if these pistons are not in stock, they may take up-to 6 weeks to manufacture the pistons from the date the order is placed. Please check with us to see if the pistons you want are in stock before ordering if you are under a time deadline.***