- Utilizes the Gen IV LS7 valve-train and intake manifold
- Designed for any new Gen IV short-block with 4.125″ bore or larger
- Uses a 2.250″ intake valve and 1.600″ exhaust valve
- Has a 294cc intake port
- Has 70cc combustion chamber
- Has a deck thickness of .750″
***Due to the thicker deck and higher valve cover rails some beauty covers are not compatible. When using Corvette (Y-Body) front accessories alternator may need to be clearanced.
Flow Data w/4.125″ Bore Plate | ||
Lift | Intake | Exhaust |
0.100 | 76 | 65 |
0.200 | 163 | 118 |
0.300 | 245 | 171 |
0.400 | 307 | 212 |
0.500 | 350 | 229 |
0.600 | 379 | 245 |
0.650 | 388 | 247 |
0.700 | 395 | 249 |
0.800 | 401.5 | 258 |
0.900 | 406 | 260 |
1.000 | 410 | 263 |