Forged 4.160" Bore Flat Top Piston Set, -5cc, 3.750" Stroke, 6.625" Rod1.69" Comp Height. Suit PontiacBrand: SRPPart Number: SRP153983Description: 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
