SPOOL Holden / GM LS 3.622" Stroke (15 degree Heads) CP Bullet Pistons and Spool Conrods
We Keep a good range of pistons in stock but As there are so many part numbers we may need to order these in on demand from CP. They will take UP to 2 weeks but generally less. If CP has them on back order we will email you and let you know otherwise we ship when they arrive.
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
CP Bullet Pistons and Spool H Beam Connecting Rods
Suits Chevrolet LS 3.622" Stroke (15° Heads) and 6.125" Connecting Rods
Upgrade to Drag Pro I Beam Conrods using dropdown above
Try our new LS Piston Finder to help select the right piston. Click here
Use the table below to find your required specifications.
| Part Number | Bore | Stroke | Rod | Comp Height | Head Type | Head CC | Dome Height | Dish / Dome | C/R | Pin Dia | VR Depths | Weight | Type | VR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BLS1001-007 | 3.905 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 70.0 | FT | -4.1cc | FT | .927 x 2.250 | .200 / SP | 420 | FT | 2 VR's |
| BLS1011-005 | 4.005 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.2:1 | .927 x 2.250 | .175 / SP | 430 | FT | 2 VR's |
| BLS1011-030 | 4.030 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.4:1 | .927 x 2.250 | .175 / SP | 438 | FT | 2 VR's |
| BLS1012-005 | 4.005 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.2:1 | .927 x 2.250 | .175 / SP | 475 | FT | 2 VR's |
| BLS1012-125 | 4.125 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.6:1 | .927 x 2.250 | .175 / SP | 485 | FT | 2 VR's |
| BLS1112-007 | 3.905 | 3.622 | 6.125 | 1.305 | Std 15 deg/ L92 | 70.0 | F.T | -2.7cc | 9.6:1 | .927 x 2.250 | .175 / SP | 406 | FT | 2 VR's |
| BLS1114-005 | 4.070 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 70.0 | -.0935 | -14.5cc | 9.2:1 | .927 x 2.250 | .200 / .155 | 472 | Dish | 2 VR's |
| BLS1114-010 | 4.075 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 70.0 | -.0935 | -14.5cc | 9.2:1 | .927 x 2.250 | .200 / .155 | 473 | Dish | 2 VR's |
| BLS1114-STD | 4.065 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 70.0 | -.0935 | -14.5cc | 9.0:1 | .927 x 2.250 | .200 / .155 | 470 | Dish | 2 VR's |
| BLS1116-005 | 4.005 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 70.0 | .015 | -5.6cc | 9.5:1 | .927 x 2.250 | .200 / .155 | 461 | Dish | 2 VR's |
| BLS1118-030 | 4.030 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | 0.081 | -13cc | 9.0:1 | .927 x 2.250 | .200 / SP | 481 | Dish | 2 VR's |
| BLS1118-040 | 4.040 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | 0.081 | -13cc | 9.0:1 | .927 x 2.250 | .200 / SP | 481 | Dish | 2 VR's |
| BLS1121-005 | 4.070 | 3.622 | 6.125 | 1.305 | Std 15 deg/ L92 | 66.5 | F.T | -2.7cc | 10.6:1 | .927 x 2.250 | .175 / SP | TBD | FT | 2 VR's |
| BLS1121-STD | 4.065 | 3.622 | 6.125 | 1.305 | Std 15 deg/ L92 | 66.5 | F.T | -2.7cc | 10.5:1 | .927 x 2.250 | .175 / SP | TBD | FT | 2 VR's |
| BLS1122-015 | 4.080 | 3.622 | 6.125 | 1.305 | Std 15 deg/ L92 | 66.5 | F.T | -2.7cc | 10.6:1 | .927 x 2.250 | .175 / SP | TBD | FT | 2 VR's |
| BLS1127-015 | 4.080 | 3.622 | 6.125 | 1.295 | Std 15 deg/ L92 | 70.0 | FT | -3.5cc | 10.1:1 | .927 x 2.250 | .200 / SP | 475 | FT | 2 VR's |
| BLS1135-030 | 4.030 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.2:1 | .927 x 2.250 | .175 / SP | 479 | FT | 2 VR's |
| BLS1135-065 | 4.065 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.3:1 | .927 x 2.250 | .175 / SP | 479 | FT | 2 VR's |
| BLS1135-070 | 4.070 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.3:1 | .927 x 2.250 | .175 / SP | 479 | FT | 2 VR's |
| BLS1135-075 | 4.075 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.4:1 | .927 x 2.250 | .175 / SP | 479 | FT | 2 VR's |
| BLS1136-005 | 4.070 | 3.622 | 6.125 | 1.314 | Std 15 deg/ L92 | 68.0 | F.T | -2.7cc | 10.6:1 | .927 x 2.250 | .175 / SP | 492 | FT | 2 VR's |
| BLS1138-005 | 4.005 | 3.622 | 6.125 | 1.305 | Std 15 deg/ L92 | 68.0 | FT | *+10cc | 10.1:1 | .927 x 2.250 | .190 / SP | 473 | FT | 2 VR's |
| BLS1140-005 | 4.005 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | -.085 | *-13.3cc | 9.0:1 | .927 x 2.250 | .200 / .155 | TBD | Dish | 2 VR's |
| BLS1140-125 | 4.125 | 3.622 | 6.125 | 1.300 | Std 15 deg/ L92 | 68.0 | -.085 | *-13.3cc | 9.5:1 | .927 x 2.250 | .200 / .155 | TBD | Dish | 2 VR's |
| BLS1150-005 | 4.005 | 3.622 | 6.125 | 1.300 | AFR LS3 12 * | 68.0 | F.T | -3cc | 10.1:1 | .927 x 2.250 | .200 / SP | TBD | FT | 2 VR's |
| BLS1150-030 | 4.030 | 3.622 | 6.125 | 1.300 | AFR LS3 12 * | 68.0 | F.T | -3cc | 10.1:1 | .927 x 2.250 | .200 / SP | TBD | FT | 2 VR's |
| BLS1152-005 | 4.070 | 3.622 | 6.125 | 1.300 | AFR LS3 12 * | 68.0 | F.T | -3cc | 10.3:1 | .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]
CP Bullet Features Include:
- 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
Spool Connecting Rods Feature:
- Spool H Beam as Standard - Upgrade to Drag Pro I Beam available
- ARP 2000 fasteners (L19 fasteners are available as an upgrade)
- High tensile 4340 forged steel
- 2 Piece forging
- Hardness of HRC36-42
- Dowelled caps for precision alignment
- X-RAY & Sonic tested
- Quenching and heat treated
- Shot peened
- 100% Magnafluxed
- Weight Matched Sets +/- 1 gram
- Vacuum degassed to remove impurities
Note: Clearancing of the cylinder block is sometimes required.
| Product Name | SPOOL Holden / GM LS 3.622" Stroke (15 degree Heads) CP Bullet Pistons and Spool Conrods |
|---|---|
| Brands | Spool |
| Engine | Chev LS (15° Heads), GM / LS, LS 5.7L and 6.0L V8 |
| Make | Chevrolet, GM, Holden, LS Chev |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
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 is included in a typical Spool engine kit?
Kits usually include pistons, rings, rods, bearings and related hardware depending on the engine family. Check the listing for exact inclusions.
Do I still need machining with a full engine kit?
Yes. The block must be honed and all clearances checked and set by your builder. Assembly should only occur after full measurement and verification.
What are the recommended clearances for the CP Bullet pistons in this kit?
For the CP Bullet pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended, but this can vary based on the specific application and operating conditions. Always consult with your engine builder to determine the optimal clearance for your setup.
What is the weight of the Spool conrods included in this kit?
The Spool H Beam connecting rods included in this kit are weight matched to within +/- 1 gram, ensuring consistent performance. The exact weight can vary slightly depending on the specific part number, so it's best to check the specifications for your chosen rod.
Are the pistons in this kit suitable for high boost applications?
Yes, the CP Bullet pistons are designed for severe duty applications, including high boost setups. They feature a robust construction with dual forced pin oilers and a contemporary ring set, making them suitable for turbocharged or nitrous applications. However, proper tuning and fuel quality are crucial for reliability.
What type of fasteners are used in the Spool conrods?
The Spool conrods come standard with ARP2000 fasteners, which provide excellent strength and reliability. For applications requiring even higher performance, L19 fasteners are available as an upgrade.
Is any clearancing required for installation of the conrods and pistons?
Yes, clearancing of the cylinder block may be required when installing the conrods and pistons. This is particularly true in high-performance applications where additional stroke or rod length may necessitate modifications. Always verify fitment with your engine builder.
