SRP Forged 4.160" Bore Flat Top Piston Set, -5cc, 3.750" Stroke, 6.625" Rod (SRP153983)

SRP153983 - PONTIAC 4.160" FLAT TOP -5cc

1.69" Comp Height. Suit Pontiac

Part Number: SRP153983

JE Pistons SRP line is proud to offer huge performance for the price. Forged from strong, 4032 aluminium alloy material, SRP pistons blend strength with affordability, offering an excellent performance bargain for performance rebuild and street/strip applications. (some applications in 2618)
Features:
4032 low expansion high silicon aluminium alloy heat treated to SRP specifications
Forced Pin Oiler for increased wrist pin lubrication
Pin fitting and double spiro locks included
980-2750-150 wall wrist pin (135g) included, except where noted (Footnote E part numbers include 990-2750-15-51S pins)
CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Sold Separately)

Specifications:
Engine: BIG BLOCK PONTIAC
Bore Diameter: 4.160
Compression Height: 1.690

Compression Ratio with 72cc chamber volume: 10.9

Compression Ratio with 80cc chamber volume: 10.3

Compression Ratio with 84cc chamber volume: 9.4

Piston Volume: -5
Cylinder Head: PONTIAC 400
Piston Pin Outside Diameter: 0.980
Piston Pin Length: 2.750

Piston Pin Material: 5115
Ringset Included: No
Top Compression Ring Thickness: 1/16"
Second Compression Ring Thickness: 1/16"
Oil Ring Thickness: 3/16"
Piston Material: 4032
Forging Type: FSR
Piston Avg Weight: 526

Pin Wall Thickness: 0.150
Piston Type: Flat
Ring Set: S100S8-4155-5