Diamond Racing Pistons - 12° LS2K Series
Piston Features:
- 3D milling on piston crowns for ready to install finish
- Inboard forging design with fully machined under crown for maximum strength
- Valve pockets designed to work with most aftermarket 12° cylinder heads
- Side gas ports for better ring seal
- Moly skirt coating for friction loss and skirt wear protection
- Top ring down dimension: .280" (1.115cd) .250" (1.053cd)
- Ratios figured for .053 head gasket
- Premium 1.5mm x 1.5mm x 3.0mm ring package included
- Premium H-13 .225W wrist pins included chamfered for round wire locks
- Valve pocket depth: 0.220" intake and .162" exhaust
- 2618 material for High HP-NOS-Boost applications - rated for 2000HP
Swipe left or right on tables below to see more info.
Items 1-36 of 36
image | item no | bore | stroke | rod | comp height | pin | cc | compression ratio | ring thickness | cyl qty | msrp | buy |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 21523-RS-8 | 4.000 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.4 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21524-RS-8 | 4.005 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.4 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21525-RS-8 | 4.010 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.4 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21526-RS-8 | 4.030 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21527-RS-8 | 4.035 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21528-RS-8 | 4.065 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.7 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21529-RS-8 | 4.070 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.7 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21530-RS-8 | 4.080 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 10.8 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21531-RS-8 | 4.125 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 11.0 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21532-RS-8 | 4.185 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 11.3 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21533-RS-8 | 4.030 | 4.125 | 6.125 | 1.053 | .927 x 2.250 | -4.8cc | 10.8 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21534-RS-8 | 4.070 | 4.125 | 6.125 | 1.053 | .927 x 2.250 | -4.8cc | 11.0 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21535-RS-8 | 4.125 | 4.125 | 6.125 | 1.053 | .927 x 2.250 | -4.8cc | 11.3 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21549-RS-8 | 4.000 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -14.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21550-RS-8 | 4.005 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -14.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21551-RS-8 | 4.010 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -14.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21552-RS-8 | 4.030 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -15.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21553-RS-8 | 4.035 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -15.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21554-RS-8 | 4.065 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -17.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21555-RS-8 | 4.070 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -17.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21556-RS-8 | 4.080 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -18.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21557-RS-8 | 4.125 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -20.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21558-RS-8 | 4.185 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -23.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21559-RS-8 | 4.030 | 4.125 | 6.125 | 1.053 | .927 x 2.250 | -18.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21560-RS-8 | 4.070 | 4.125 | 6.125 | 1.053 | .927 x 2.250 | -20.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21561-RS-8 | 4.125 | 4.125 | 6.125 | 1.053 | .927 x 2.250 | -23.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21564-RS-8 | 4.030 | 3.622 | 6.125 | 1.304 | .927 x 2.250 | -4.8cc | 9.6 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21565-RS-8 | 4.125 | 3.622 | 6.125 | 1.304 | .927 x 2.250 | -4.8cc | 10.0 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21568-RS-8 | 4.135 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 11.0 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21569-RS-8 | 4.145 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 11.1 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21570-RS-8 | 4.155 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 11.1 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21571-RS-8 | 4.165 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -4.8cc | 11.2 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21572-RS-8 | 4.135 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -20.0cc | 9.5 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21573-RS-8 | 4.145 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -20.0cc | 9.6 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21574-RS-8 | 4.155 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -20.0cc | 9.6 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 | |
 | 21575-RS-8 | 4.165 | 4.000 | 6.125 | 1.115 | .927 x 2.250 | -20.0cc | 9.7 | 1.5mm x 1.5mm x 3.0mm | 8 | $1347.31 |
Swipe left or right on tables below to see more info.
Browse 12° LS2K Series Products
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21523-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21524-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21525-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21526-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21527-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21528-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21529-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21530-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21531-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21532-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21533-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21534-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21535-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21549-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21550-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21551-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21552-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21553-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21554-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21555-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21556-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21557-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21558-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21559-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21560-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21561-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21564-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21565-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21568-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21569-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21570-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21571-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21572-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21573-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21574-RS-8
Condition:
New
Price: $1,347.31
Chevy LSX 12
Description:
Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Inboard Forging; Pins, Lock's & Support Rails (if required) included
Item #: 21575-RS-8
Condition:
New
Price: $1,347.31
Items 1-36 of 36