SRP Forged 4.070" Bore Flat Top Piston Set, -5cc, 3.622" Stroke, 6.125" Rod (SRP279593)

SRP279593 - LS3 4.070" PISTONS -5cc FLAT

1.315" Comp Height. Suit GM LS3/L92

Part Number: SRP279593

SRP Pistons is proud to offer a high tech addition to our very popular product line. SRP Professional pistons include features used in professional racing such as lightweight forged side relief (FSR) forgings, high quality wrist pins, and precision CNC machined ring grooves and skirts. In addition, every package includes JE Pro Seal Premium Piston Rings. The included ring set features a 1.2 premium steel top ring, 1.5mm Napier (hooked face) second ring and 3.0mm standard tension oil ring. Every piston is designed and manufactured in the USA at the advanced JE/SRP Pistons manufacturing center.

Rings Included:
Lightweight, low friction metric ring package included
1.2mm CARBON STEEL top ring, 1.5mm Napier 2nd ring, 3.0mm standard tension oil ring
Minimal filing required

Pins & Locks
:

High quality 2.250" pin further reduces reciprocating weight
Carbon steel wire locks included

Specifications:
Engine: CHEVROLET LS GEN III/IV

Bore Diameter: 4.070

Compression Height: 1.315
Compression Ratio with 64cc chamber volume: 10.9
Compression Ratio with 66cc chamber volume: 10.6
Compression Ratio with 72cc chamber volume: 10.0
Piston Volume: -5
Cylinder Head: LSX/L92 12 DEG
Piston Pin Outside Diameter: 0.927
Piston Pin Length: 2.250

Piston Pin Material: 5115
Ringset Included: Yes
Top Compression Ring Thickness: 1.2mm
Second Compression Ring Thickness: 1.5mm
Oil Ring Thickness: 3.00mm

Piston Material: 4032

Forging Type: FSR
Piston Avg Weight: 439

Pin Wall Thickness: 0.150
Piston Type: Flat
Ring Set: JG31F8-4070-0