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- 1999-2013 Chevrolet Silverado 1500
- 1999-2013 GMC Sierra 1500
- 1999-2014 Cadillac Escalade
- 1999-2014 Chevrolet Surburban
- 265cc
- 427
- 5.3
- 5.3 truck
- 5.7
- cam
- cam install kit
- Cam Packages
- camaro
- Camaro 5 Tune
- Camaro ls3
- Camaro5 tune
- cammed ls
- cammed silverado
- corvette ls3
- DOD Delete Kits
- F-35
- F35
- GM ls7 lifter
- Hptuners MPVI
- hptuners pro
- L83 Oil consumption
- ls cam
- LS1 5.7
- ls1 camshaft
- ls1 Email tune
- ls2
- LS2 tuner
- ls3
- ls3 camaro
- LS3 camshaft kit
- LS3 gto tune
- ls3 heads
- LS3 tune
- ls6
- ls6 tune
- ls6 tuner
- ls6 tuning
- LS7
- ls7 lifter
- LSX
- LSX tune
- LSX tuner
- lsx tuning
- mail order tune
- MailOrderTune
- MailOrdertuner
- oil consumption
- PRC
- PRC heads
- Remote tune
- Remote tuner
- silverado 5.3
- silverado cam
- silverado camshaft
- SIlverado tune
- Silverado tuner
- stage 1
- stage 2
- stage 3 camshaft
- Stage 4 cam
- stage 4 camshaft
- texas speed
- Texas speed tune
- Texas Speed tuner
- trans
- truck cam
- truck camshaft
- tsp lifters
- VVT camshaft
- z28
- 1999-2013 Chevrolet Silverado 1500
- 1999-2013 GMC Sierra 1500
- 1999-2014 Cadillac Escalade
- 1999-2014 Chevrolet Surburban
- 265cc
- 427
- 5.3
- 5.3 truck
- 5.7
- cam
- cam install kit
- Cam Packages
- camaro
- Camaro 5 Tune
- Camaro ls3
- Camaro5 tune
- cammed ls
- cammed silverado
- corvette ls3
- DOD Delete Kits
- F-35
- F35
- GM ls7 lifter
- Hptuners MPVI
- hptuners pro
- L83 Oil consumption
- ls cam
- LS1 5.7
- ls1 camshaft
- ls1 Email tune
- ls2
- LS2 tuner
- ls3
- ls3 camaro
- LS3 camshaft kit
- LS3 gto tune
- ls3 heads
- LS3 tune
- ls6
- ls6 tune
- ls6 tuner
- ls6 tuning
- LS7
- ls7 lifter
- LSX
- LSX tune
- LSX tuner
- lsx tuning
- mail order tune
- MailOrderTune
- MailOrdertuner
- oil consumption
- PRC
- PRC heads
- Remote tune
- Remote tuner
- silverado 5.3
- silverado cam
- silverado camshaft
- SIlverado tune
- Silverado tuner
- stage 1
- stage 2
- stage 3 camshaft
- Stage 4 cam
- stage 4 camshaft
- texas speed
- Texas speed tune
- Texas Speed tuner
- trans
- truck cam
- truck camshaft
- tsp lifters
- VVT camshaft
- z28
1 product
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.
