CP Bullet LS Pistons 4.000" Stroke (15° Heads)
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CP Bullet Series Pistons
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Suit Chevrolet LS 4.000" Stroke (15°Heads)
| Part Number | Bore | Stroke | Rod | Comp Height | Head Type | Head CC | Dome Height | Dish / Dome | C/R | Pin Dia | VR Depths | Weight | Type | VR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BLS1002-007 | 3.905 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | -.135 | -18.2cc | 9.0:1 | .927 x 2.250 | .185 / .145 | 376 | Dish | 2 VR's |
| BLS1004-005 | 4.005 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 63.0 | -.195 | -27.8cc | 9.0:1 | .927 x 2.250 | .200 / .155 | 406 | Dish | 2 VR's |
| BLS1005-005 | 4.005 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | -.080 | -12.7cc | 10.3:1 | .927 x 2.250 | .200 / SP | 399 | Dish | 2 VR's |
| BLS1006-030 | 4.030 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | -.188 | -27.5cc | 9.0:1 | .927 x 2.250 | .200 / .155 | 413 | Dish | 2 VR's |
| BLS1006-040 | 4.040 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | -.188 | -27.5cc | 9.2:1 | .927 x 2.250 | .200 / .155 | 415 | Dish | 2 VR's |
| BLS1007-STD | 4.065 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 70.0 | -.070 | -11.2cc | 9.9:1 | .927 x 2.250 | .200 / SP | 442 | Dish | 2 VR's |
| BLS1007-005 | 4.070 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 70.0 | -.070 | -11.2cc | 9.9:1 | .927 x 2.250 | .200 / SP | 443 | Dish | 2 VR's |
| BLS1007-010 | 4.075 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 70.0 | -.070 | 11.2cc | 10.2:1 | .927 x 2.250 | .200 / SP | 444 | Dish | 2 VR's |
| BLS1007-015 | 4.080 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 70.0 | -.070 | -11.2cc | 10.2:1 | .927 x 2.250 | .200 / SP | 447 | Dish | 2 VR's |
| BLS1007-030 | 4.030 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | -.082 | -13.4cc | 10.3:1 | .927 x 2.250 | .200 / SP | 406 | Dish | 2 VR's |
| BLS1007-080 | 4.080 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | -.082 | -13.4cc | 10.5:1 | .927 x 2.250 | .200 / SP | 419 | Dish | 2 VR's |
| BLS1008-125 | 4.125 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | -.110 | -17.4cc | 10.3:1 | .927 x 2.250 | .210 / SP | 431 | Dish | 2 VR's |
| BLS1009-007 | 3.905 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 65.0 | F.T | -2.7cc | 11.0:1 | .927 x 2.250 | .175 / SP | 378 | FT | 2 VR's |
| BLS1010-005 | 4.005 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 65.0 | F.T | -2.7cc | 11.5:1 | .927 x 2.250 | .175 / SP | 402 | FT | 2 VR's |
| BLS1111-030 | 4.030 | 4.000 | 6.125 | 1.105 | Std 15 deg/ L92 | 65.0 | F.T | -2.7cc | 11.5:1 | .927 x 2.250 | .175 / SP | 408 | FT | 2 VR's |
| BLS1113-125 | 4.125 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 70.0 | F.T | 3.8cc | 11.3:1 | .927 x 2.250 | .200 / SP | 428 | FT | 2 VR's |
| BLS1113-130 | 4.130 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 70.0 | F.T | -3.8cc | 11.3:1 | .927 x 2.250 | .200 / SP | 428 | FT | 2 VR's |
| BLS1115-STD | 4.065 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 66.0 | .180 | -27.4cc | 9.0:1 | .927 x 2.250 | .200 / SP | 421 | Dish | 2 VR's |
| BLS1115-005 | 4.070 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 66.0 | .180 | -27.4cc | 9.0:1 | .927 x 2.250 | .200 / SP | 423 | Dish | 2 VR's |
| BLS1115-010 | 4.075 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 66.0 | .180 | -27.4cc | 9.0:1 | .927 x 2.250 | .200 / SP | 425 | Dish | 2 VR's |
| BLS1117-005 | 4.005 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | 0.040 | -8cc | 10.5:1 | .927 x 2.250 | .200 / SP | 442 | Dish | 2 VR's |
| BLS1117-030 | 4.030 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 64.0 | 0.082 | -13.4cc | 10.3:1 | .927 x 2.250 | .200 / SP | 438 | Dish | 2 VR's |
| BLS1119-015 | 4.080 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 11.3:1 | .927 x 2.250 | .175 / SP | 421 | Dish | 2 VR's |
| BLS1123-005 | 4.070 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 66.0 | F.T | -2.7cc | 11.6:1 | .927 x 2.250 | .175 / SP | TBD | FT | 2 VR's |
| BLS1123-STD | 4.065 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 66.0 | F.T | -2.7cc | 11.5:1 | .927 x 2.250 | .175 / SP | TBD | FT | 2 VR's |
| BLS1125-060 | 4.125 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 68.0 | .144 | -22.2cc | 9.5:1 | .927 x 2.250 | .200 / .155 | 446 | Dish | 2 VR's |
| BLS1126-005 | 4.005 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 70.0 | .0935 | -14.5cc | 9.5:1 | .927 x 2.250 | .200 / SP | 406 | Dish | 2 VR's |
| BLS1128-015 | 4.080 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 70.0 | -.172 | -25.1cc | 9.1:1 | .927 x 2.250 | .200 / SP | 431 | Dish | 2 VR's |
| BLS1130-065 | 4.130 | 4.000 | 6.125 | 1.105 | Std 15 deg/ L92 | 68.0 | .095 | -14.2cc | 10.5:1 | .927 x 2.250 | .175 / SP | 408 | Dish | 2 VR's |
| BLS1131-STD | 4.065 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | .230 | +11.8*cc | 13.5:1 | .927 x 2.250 | .200 / SP | 419 | Dome | 2 VR's |
| BLS1133-045 | 4.045 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 68.0 | .175 | +10cc | 13.1:1 | .927 x 2.250 | .190 / SP | 462 | Dome | 2 VR's |
| BLS1137-STD | 4.065 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 70.0 | *-.042 | *-8.4cc | 10.5:1 | .927 x 2.250 | .200 / SP | 454 | Dish | 2 VR's |
| BLS1137-005 | 4.070 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 70.0 | *-.045 | *-8.6cc | 10.5:1 | .927 x 2.250 | .200 / SP | 454 | Dish | 2 VR's |
| BLS1137-010 | 4.075 | 4.000 | 6.125 | 1.115 | Std 15 deg/ L92 | 70.0 | *-.045 | *-8.6cc | 10.6:1 | .927 x 2.250 | .200 / SP | 455 | Dish | 2 VR's |
| BLS1142-030 | 4.030 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | FT | *-2.7cc | 11.0:1 | .927 x 2.250 | .175 / SP | 452 | FT | 2 VR's |
| BLS1143-007 | 3.905 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | FT | *-2.7cc | 10.5:1 | .927 x 2.250 | .175 / SP | 416 | FT | 2 VR's |
| BLS1146-005 | 4.005 | 4.000 | 6.125 | 1.110 | Std 15 deg/ L92 | 68.0 | TBD | -20cc | 9.2:1 | .927 x 2.250 | .200 / SP | 415 | Dish | 2 VR's |
| BLS1151-005 | 4.005 | 4.000 | 6.125 | 1.110 | AFR LS3 12 * | 68.0 | F.T | -3cc | 11.1:1 | .927 x 2.250 | .200 / SP | TBD | FT | 2 VR's |
| BLS1151-030 | 4.030 | 4.000 | 6.125 | 1.110 | AFR LS3 12 * | 68.0 | F.T | -3cc | 11.1:1 | .927 x 2.250 | .200 / SP | TBD | FT | 2 VR's |
| BLS1153-005 | 4.070 | 4.000 | 6.125 | 1.110 | AFR LS3 12 * | 68.0 | F.T | -3cc | 11.3:1 | .927 x 2.250 | .200 / SP | TBD | FT | 2 VR's |
Please note: All care is taken to provide the correct specifications; however Spool Imports is not responsible for any incorrect specifications listed. It is important to confirm your specifications with other available manufacturer resources before ordering any parts for an engine. If you need more information please contact [email protected]
Features Included:
- Pistons manufactured from 2618 alloy for strength and durability
- Balanced to + or – 1 gram
- Dual forced pin oilers
- Contact reduction grooves
- Accumulator Grooves
- Contemporary ring set included (Comes standard with 1.5mm x 1.5mm x 3.0mm ring pack that consists of High-grade Steel Gas Nitrided barrel faced tops with Taper Hook Groove Napier second rings and a 3-piece soft nitrided rail flex vent oils, specially designed for severe duty applications such as nitrous blowers and turbo engines.)
- Forged side relief
- Chromoly wrist pins with wire locks
- FEA designed forging
- Tight tolerances
- USA made
| Product Name | CP Bullet LS Pistons 4.000" Stroke (15° Heads) |
|---|---|
| Brands | CP Carrillo |
| Engine | Chev LS (15° Heads), GM / LS |
| Make | Chevrolet, GM, Holden, LS Chev |
Delivery & Freight
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the recommended bore clearance for the CP Bullet LS pistons?
The recommended bore clearance for CP Bullet LS pistons typically ranges from 0.0030" to 0.0035". However, it's crucial to confirm this with your engine builder, as specific clearances may vary based on the application and engine conditions.
What type of ring set comes with the CP Bullet LS pistons?
The CP Bullet LS pistons come standard with a contemporary ring set consisting of a 1.5mm x 1.5mm x 3.0mm configuration. This includes high-grade steel gas nitrided barrel faced tops, taper hook groove Napier second rings, and a three-piece soft nitrided rail flex vent oil ring, designed for severe duty applications.
What is the weight of the CP Bullet LS pistons?
The weight of the CP Bullet LS pistons varies by part number, generally ranging from approximately 376 grams to 447 grams. Ensure to check the specific part number for precise weight details, as this can affect engine balance.
Are these pistons suitable for high boost applications?
Yes, the CP Bullet LS pistons are designed for high-performance applications, including those with boost. Their construction from 2618 alloy and features like dual forced pin oilers enhance durability under severe conditions. However, proper tuning and clearances are essential for reliability.
What machining is required for the CP Bullet LS pistons?
Before installation, ensure that the pistons are fitted with the correct bore clearance and that the ring gaps are set according to your engine's specifications. Additionally, confirm that the piston pin bores are properly sized and that the pistons are balanced with the full rotating assembly.
