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- 427
- Camaro ls3
- corvette ls3
- ls3
- ls3 camaro
- LS3 gto tune
- ls3 heads
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- ls6 tuner
- ls6 tuning
- LS7
- LSX
- LSX tune
- LSX tuner
- lsx tuning
- mail order tune
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- PRC heads
- Remote tune
- Remote tuner
- stage 1
- stage 2
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- truck cam
- truck camshaft
- VVT camshaft
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2 products
PRC LS7x 265cc CNC Small Bore Heads
Regular price $3,935.99 Save $-3,935.99Requires at least a 4.065" Bore
Click Here to SEE why we build better heads!
MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
- PRC 6-Bolt LS7 Cylinder Heads with Thicker Deck Surface
- Will Work on Both Standard GM 4-Bolt & Aftermarket LSx / RHS 6-Bolt Style Engine Blocks
- 2.205"/1.59" Valves
- TSP .660" Dual Spring Kit w/ PAC Springs, Retainers, Seats, & Seals
Springs, Titanium Retainers, Seats, & Seals - CHE Bronze Guides
- Completely Assembled & Setup To Your Specs
- Available With Stainless Steel, Hollow-Stem, or Titanium Intake Valves
- 68cc Chamber Size as Standard
The PRC Small Bore LS7 cylinder heads are designed for both stroker, and stock cube applications with a 4.060"-4.100" bore. For bores larger than 4.100" bore checkout the PRC LS7 265cc & 285cc cylinder heads!
The PRC LS7 cylinder heads are available with hollow-stem intake and titanium intake valves. We recommend no more than .625" total intake valve lift with the hollow-stem intake valves and no more than .670" total valve lift with the titanium intake valves.
The PRC LS7 cylinder heads are available with hollow-stem intake and titanium intake valves. We recommend no more than .625" total intake valve lift with the hollow-stem intake valves and no more than .670" total valve lift with the titanium intake valves.
| PRC 265cc LS7 Intake |
PRC LS7 Exhaust | |
| .200 | 169 | 118 |
| .300 | 246 | 176 |
| .400 | 304 | 208 |
| .500 | 348 | 221 |
| .600 | 380 | 230 |
| .650 | 383 | 235 |
| .700 | 388 | 240 |
**Valve spring lift ratings are based on using titanium intake valves.
PRC LS7x 265cc CNC Heads
Regular price $3,935.99 Save $-3,935.99Precision Race Components LS7 CNC 265cc ported cylinder heads.
Click Here to SEE why we build better heads!
MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
- PRC 6-Bolt LS7 Cylinder Heads with Thicker Deck Surface
- Will Work on Both Standard GM 4-Bolt & Aftermarket LSx / RHS 6-Bolt Style Engine Blocks
- 2.200"/1.610" Valves
- TSP .660" Dual Spring Kit w/ PAC Springs, Retainers, Seats, & Seals
Springs, Titanium Retainers, Seats, & Seals - CHE Bronze Guides
- Completely Assembled & Setup To Your Specs
- Available With Stainless Steel, Hollow-Stem, or Titanium Intake Valves
The PRC LS7 cylinder heads is available with standard stainless valves, hollow-stem intake, and titanium intake valves. If you are going to run the stainless steel intake valves, we recommend limiting total valve lift to no more than .616" due to the weight of the intake valve. Upgrading to the hollow-stem intake valve will shed significant intake valve weight and allow for additional lift. The titanium intake valves will be the lightest choice of the three choices and offer the best lift possible!
|
LS7 |
LS7 Exhaust | PRC 265cc LS7 Intake |
PRC LS7 Exhaust | |
| .200 | 161 | 114 | 169 | 119 |
| .300 | 227 | 171 | 248 | 179 |
| .400 | 291 | 193 | 308 | 211 |
| .500 | 330 | 203 | 351 | 224 |
| .600 | 351 | 209 | 383 | 235 |
| .650 | 353 | 204 | 388 | 241 |
| .700 | 353 | 209 | 393 | 246 |
**Valve spring lift ratings are based on using titanium intake valves.
