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Competition Use Only, Not Legal for Road Use
MADE in the USA!! CAST in the USA!! MACHINED in the USA!!
- 2.245" Titanium Intake Valve / 1.610" Stainless Exhaust Valve
- TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
- 6-Bolt Cylinder Heads with Thicker Deck Surface
- CHE Bronze Guides
- Will Work on Both Standard GM 4-Bolt & Aftermarket LSx / RHS 6-Bolt Style Engine Blocks
- Completely Assembled in the USA
Extensive CNC and dyno testing has resulted in one of the most affordable and powerful LS7-based cylinder heads available! Flowing up to 53 CFM more than the stock GM LS7 head, the all-new PRC cylinder heads offer both unmatched power and airflow! The 285cc runner is recommended for higher HP applications with a minimum bore size of 4.125".
Cylinder Head Specs:
Valve Angle: 12 Degree
Intake CC: 285cc
Intake Valve: 2.245"
Exhaust Valve:1.610"
Chamber Size: 70cc
**Valve spring lift ratings are based on using titanium intake valves.
LS7 |
LS7 Exhaust | PRC 285cc LS7 Intake |
PRC LS7 Exhaust | |
.200 | 161 | 114 | 169 | 119 |
.300 | 227 | 171 | 248 | 179 |
.400 | 291 | 193 | 311 | 211 |
.500 | 330 | 203 | 353 | 224 |
.600 | 351 | 209 | 386 | 235 |
.650 | 353 | 204 | 393 | 241 |
.700 | 353 | 209 | 407 | 246 |