Subaru JE Pistons EJ257 BLOCK WITH EJ20 HEAD "FSR" - Piston Kit
Price: $724.30
Select Size:
- Bore
- Engine Compression Ratio (CR)
- Volume Dome CC
- 99.50mm = 3.917in 8.5:1 -25.5
- 99.50mm = 3.917in 9.5:1 -16.4
- 99.75mm = 3.927in 8.5:1 -26
- 99.75mm = 3.927in 9.5:1 -16.7
- 100.0mm = 3.937in 8.5:1 -26.4
- 100.0mm = 3.937in 9.5:1 -17
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Part # | Bore | Oversize | Stroke (mm) |
Rod (mm) |
C/D (mm) |
Head CCs | C/R With .040 | Dome CCs | Gram | Footnote | Skirt | Included Ring Set# |
291059 | 99.5 | STD | 79 | 130.5 | 30.7 | 48 | 8.5:1 | -25.5 | 411 | T | F | JG4904-3917 |
325249 | 99.5 | STD | 79 | 130.5 | 30.7 | 48 | 9.5:1 | -16.4 | 411 | T | F | JG4904-3917 |
296349 | 99.75 | 0.25 | 79 | 130.5 | 30.7 | 48 | 8.5:1 | -26 | 413 | T,M | F | JG4904-3927 |
325250 | 99.75 | 0.25 | 79 | 130.5 | 30.7 | 48 | 9.5:1 | -16.7 | 414 | T | F | JG4904-3927 |
291060 | 100 | 0.5 | 79 | 130.5 | 30.7 | 48 | 8.5:1 | -26.4 | 416 | T | F | JG4904-3937 |
325251 | 100 | 0.5 | 79 | 130.5 | 30.7 | 48 | 9.5:1 | -17 | 416 | T | F | JG4904-3937 |
Top Compression Ring Thickness | 0.0480 |
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Second Compression Ring Thickness | 0.0480 |
Oil Ring Thickness | 0.100 |
Forging Type | FSR |
Series | JE Pistons |
Piston Head Type | Inv Dome/Dish |
Pin Diameter (IN) | 0.905 |
Make | SUBARU |
Wrist Pin Style - floating or press fit | Floating |
Wall Type | STRAIGHT |
Wall Thickness (IN) | 0.180 |
Ringset Part Number | JG4901-3917 |
Ring Brand | ProSeal |
Ringset Included | Yes |
Retainer Thickness | 0.042 |
Retainer Lock Style | Tru Arc Lock |
Retainer Lock Part Number | 905-042-CT |
Retainer Diameter (IN) | 0.905 |
Piston Pin Inside Diameter | 0.545 |
Piston Material | 2618 |
Piston Pin Length (IN) | 2.250 |
Piston Avg Wt | 405 |
Pin Offset | Yes |
Pin Brand | JE Pistons |
Pin Part Number | 905-2250-18-51S |
Pin Included | Yes |
Pin Diameter (mm) | 23.00 |
Oil Rail Support Included | No |
Deck Clearance | -0.012 |
Brand | JE Pistons |