We have redesigned and
expanded our GM LS1 series
product lines! These new
pistons utilized our
dedicated Forged Side Relief
(FSR) forging that was
specifically designed for
high output GM LS1 series
engines. In addition we have
found ways to reduce weight
and maintain the durability
needed for both street and
racing use. Lightweight and
extremely durable, these
pistons are machined for
1.5mm, 1.5mm, 3.0mm rings.
Wrist pin upgrade recommended
above 800hp.
Includes:
-
Pin #927-2250-15-51C (106g)
- Round Wire Locks #
927-073-MW
Features:
- Accumulator Grooves
- Double Pin Oilers
- Offset Wrist Pin
Piston
Specifications
- Make: CHEVROLET
- Engine: CHEVROLET LS GEN
III/IV
- Bore Diameter:
4.065
- Compression
Height: 1.115
-
Compression Ratio with 64cc
chamber volume: 10.4
-
Compression Ratio with 68cc
chamber volume: 10.0
-
Compression Ratio with 70cc
chamber volume: 9.8
-
Piston Volume: -14.9
-
Cylinder Head: LS 12 DEG/15
DEG COMBO VR
- Piston
Pin Outside Diameter: 0.927
- Piston Pin Length:
2.250
- Piston Pin
Material: 9310
-
Ringset Included: No
-
Top Compression Ring
Thickness: 0.0475
-
Second Compression Ring
Thickness: 0.06
- Oil
Ring Thickness: 0.149
-
Piston Material: 2618
-
Forging Type: FSR
-
Piston Avg Weight: N/A
- Pin Wall Thickness: 0.200
- Piston Type: Dish