| CHEV HOLDEN V8 LS1 | |||||||
| Commodore, Corvette, GTO 355 Gen III Engine 1999-on | |||||||
| Hydraulic Lifter Camshafts | |||||||
| PART NO. | VALVE TIMING | DUR | .050" DUR. | VALVE LIFT | POWER RANGE | PART KIT | COMMENTS |
| 871245 | IN.25/65 EX.74/26 |
255 259 |
200 204 |
.500" .510" |
1000 4500 |
K871 | High torque, fuel efficient cam with smooth idle. Excellent for towing. Ideal for LPG |
| 871259 | IN.20/60 EX.66/18 |
258 265 |
207 213 |
.510" .518" |
1200 5000 |
K871 | Mild cam. Maximum performance without computer modifications. |
| 8712651a | IN.21/65 EX.72/20 |
266 273 |
214 221 |
.518" .525" |
1500 5500 |
K871 | Increased mid range power with minimal effect on fuel economy and idle quality. |
| 8712751a | IN.22/68 EX.73/22 |
270 275 |
218 224 |
.525" .525" |
1800 6200 |
K871 | Medium street performance |
| 8715281a | IN.32/74 EX.79/33 |
286 292 |
226 231 |
.542" .542" |
2200 6400 |
K871 | High performance touring cam |
| 8712851a | IN.30/78 EX.85/33 |
296 300 |
233 237 |
.550" .550" |
2500 7000 |
K872 | Street / Race cam |
| 871315a | IN. 37/79 EX.83/37 |
296 300 |
238 244 |
.585" .585" |
2800 7200 |
K872 | Hot Street / Race cam |
| Custom Ground Camshafts | |
| PART NO | DESCRIPTION |
| 871950 | Custom profile roller cam ground on induction hardened steel billet. |
| Performance Matched Valve Train Kits | |||||
| KIT NO | VALVE SPRING | SPRING RETAINER | PUSH RODS | TIMING SET | COMMENTS |
| K871 | 4231 | PR-957 | CS8LS1 | Suit Mild Cams | |
| K872 | 4337 | TR754-16 | PR57406 | CS8LS1 | Suit hot - mild race Cams |
| Performance Valve Train Components | |||
| PART NO. | DESCRIPTION | PART NO. | DESCRIPTION |
| 5230 | 300KW STD Replacement Spring Set | PR-957 | Superduty Pushrod Std Length |
| 5257 | Roller Hydraulic Lifters | PR-958 | Superduty Pushrod + 0.050" |
| 10701 | Hardened Valve Locks | PR57406 | Chromoly Race Pushrod Std Length |
| TR754-16 | Titanium Retainers suit double valve spring | PR57456 | Chromoly Race Pushrod +0.050" |
| 10707 | Chromoly retainers suit 4231 spring | CP101SS | Stainless Steel Headers |
| 4231 | High Performance Valve Spring Set | CP7TIRS | Exhaust System Suit Wagon & Ute |
| CS8LS1 | Multi Keyway Timing set | CP7TSW | Exhaust System suit Sedan |
| RTCLS1 | Heavy Duty Single Chain (Replaces std) | CP1001PPSS7 | Power Pack exhaust.with Stainless Headers |
| CP718 | High Flow Cats | CP1005PPSS7 | Power Pack with headers & cats |
| FITTING NOTES Convertor stall speed should equal or exceed minimum rpm of cam power range. | |||
| Most EFI engines will need recalibration to run with these cams | |||
| 1. | Must use performance springs | 6. | Check valve train geometry before ordering p'rod |
| 2. | Must use performance retainers | 7. | Suits sedan only. For other models contact Crow Cams. |
| 4. | Must use performance seal | a. | Recalibration of computer required. |