Features
Guaranteed to fit and meet the specifications of the OE parts being replaced
Utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience
Produced under strictly observed quality under highest ISO 9001:2000 international standards
Advanced manufacturing technology ensures durability and optimum operation
Specialized designs yield significant and noticeable improvements to your car engine
About this kit
- 238/242 duration @ .050” with .595”/.595” valve lift and 112 degree lobe separation angle
- Includes PAC-1218 valve springs, balancer bolt, and timing cover gaskets
- Increases top end power while sacrificing some low end torque
- Very aggressive cam for a street driven 5.3L and is better suited for 6.0L or stroker engines
- 3000 rpm stall converter is suggested to maximize performance
Cam specs:
Cam Lift Intake: .350
Cam Lift Exhaust: .350
Valve Lift Intake: .595
Valve Lift Exhaust: .595
Adv. Duration Intake: 296°
Adv. Duration Exhaust: 299°
Duration @ .050 Cam Lift Intake: 238°
Duration @ .050 Cam Lift Exhaust: 242°
Intake Opens at: 11° BTC
Intake Closes at: 47° ABC
Exhaust Opens at: 57° BBC
Exhaust Closes at: 5° ATC
Camshaft Overlap: 73°
Lobe Line Intake: 108°
Lobe Line Exhaust: 116°
Operating Power Range: 2,200-5,400 rpm
Valve Springs
The 1200 Series Springs were developed for the sportsman racer looking for a quality but budget minded product. 1200 Series springs come with PAC Racing Proprietary heat treat process that will allow for outstanding load loss and durability.
- Part# : PAC-1218
- Name: PAC-1218 LS1 HP Ovate Wire Beehive
- Description: LS1 OEM Ovate Beehive Valve Spring
- OD Large End: 1.290
- ID Large End: 0.885
- ID Small End: 0.650
- Install Height: 1.800
- Load at Installed Height: 130
- Spring Open Height: 1.200
- Spring Open Load: 318
- Recommended Valve Lift: 0.600
- Spring Rate (lbs/in): 313.000
- Mass (grams): 62.00
- Coil Bind (max): 1.140
TCS45993 Chevy LS Timing Cover Gaskets
Chevy LS Engine Timing Cover Gaskets
Unsurpassed quality you can trust
Includes gaskets and seals for timing chain and water pump replacement job
Chevrolet Performance Parts 12557840 Harmonic Balancer Bolt
High quality steel construction
Hex head style
16mm x 2.0 thread size
4.055" underhead length
Item Includes
- 1x Camshaft
- 16x Valve Springs
- 1x Timing Cover Gaskets
- 1x Harmonic Balancer Bolt