| CHEVROLET BIG BLOCK | |||||||
| Chev, 396,400,427,454 1965-86 *See Fitting Notes* | |||||||
| Hydraulic Lifter Camshafts | |||||||
| PART NO. | VALVE TIMING | DUR | .050" DUR. | VALVE LIFT | POWER RANGE | PART KIT | COMMENTS |
| 2602 | IN.26/64 EX.66/24 |
270 270 |
208 208 |
.484" .484" |
1100 3900 |
K201 | Mild street cam with smooth idle and good low end torque. |
| 26661 | IN.25/65 EX.74/26 |
270 280 |
204 214 |
.484" .510" |
1200 4200 |
K202 | Dual pattern economy/performance cam for stock to mild engines. |
| 26651 | IN.30/70 EX.79/31 |
280 290 |
214 224 |
.507" .536" |
1700 4500 |
K202 | Mild idle with strong mid range suits modified street engines. |
| 26051 | IN.33/67 EX.75/37 |
281 291 |
222 235 |
.508" .512" |
1900 4700 |
K202 | Fair idle requires only minor engine modifications. |
| 27781 | IN.34/70 EX.74/30 |
284 284 |
230 230 |
.530" .530" |
2000 4900 |
K202 | Mid range power cam to suit strong street engines. |
| 26491 | IN.34/68 EX.77/39 |
282 295 |
234 244 |
.525" .525" |
2200 5000 |
K202 | Mid range power cam to suit strong street engines. |
| 28021,2 | IN.39/75 EX.77/37 |
294 294 |
246 246 |
.586" .586" |
3000 5900 |
K202 | High performance cam for the fully modified street race engine. |
| 26751,2 | IN.48/82 EX.84/46 |
310 310 |
258 258 |
.560" .560" |
3500 6400 |
K202 | High performance cam for the fully modified street race engine. |
| Custom Ground Flat Tappet & Roller Camshafts | |
| PART NO. | DESCRIPTION |
| 2900 | Custom ground billet camshaft using selected master, SOLID or HYDRAULIC. |
| 2901 | Custom ground billet camshaft using 2 masters or modified lobe centres SOLID or HYDRAULIC. |
| 2902 | Custom ground profile ground on heavy duty high chrome billet SOLID or HYDRAULIC. |
| 2950 | Custom ground ROLLER profile on induction hardened steel billet. |
| 2951 | GEN VI Custm ground ROLLER profile on induction hardened billet. |
| Performance Matched Valve Train Kits | |||||||
| KIT NO. | VALVE LIFTER | VALVE SPRING | SPRING RETAINER | VALVE COLLETS | VALVE SEALS | TIMING SET | COMMENTS |
| K201 | HT969C | 7737a | 12702 | 12701 | HR245 | CS8454 | Mild street kit. |
| K202 | HT969R | 8337 | 12700 | 12701 | S23 | CS8454 | Hot street kit. |
| K203 | AT992 | 99363 | 13102 | 12101 | S23 | CS8454 | Street/race solid lifter kit. |
| K209 | 5210 | 09673 | 13103 | 12101 | S23 | CS8454 | Roller lifter kit. |
| Performance Valve Train Components | |||
| PART NO. | DESCRIPTION | PART NO. | DESCRIPTION |
| PR8830 | 3/8 Race Pushrods Std Length 8.30" | CS8454 | Multi Keyway Double Roller Chain Set |
| PR8925 | 3/8 Race Pushrods Std Length 9.25" | GCS8G6 | Multi Keyway Timing set suit Gen 6 engine |
| PR8870 | +.400" (Tall deck ) Inlet | HT969 | Hydraulic Lifter |
| PR8965 | +.400" (Tall deck) Exhaust | H969R | High Performance Hydraulic Lifter |
| BG4 | Bronze Distributor Gear | AT992 | Solid Lifter |
| FITTING NOTES Pre 1967 engines must have cam or rear bearing grooved for correct oiling. 1. Must use performance valve springs. 2. Must use performance valve spring retainers. 3. Mathining required to fit these components. a. When using standard retainers care must be taken so that the inner damper does not coil bind. * Maximum spring diameter for cast iron heads is 1.550" | |||