Small Block Chevy
Proform 66907 Features:
- Aluminum with Cage Bearing Trunions
- Blue Anodized Finish with Laser-Etched "P" Emblem
- Use with a Max Spring Diam. of 1.400 Inches
- Rated for up to 450 lbs. of Open Load Pressure
- Precision machined
- Lengthen Valve Train Component Life
- Reduce Wear On Valve Stem Tips
What is the difference between 1.5 and 1.6 roller rockers?
- The Proform 66907 offers 1.5 ratio roller rockers, providing less valve lift than 1.6. 1.5 is ideal for street applications, while 1.6 is suitable for increased performance and racing.
Are aluminum roller rockers good?
- Yes, Proform aluminum roller rockers, like the 66907, are lightweight and durable. They reduce friction, enhance valvetrain stability, and are an excellent choice for improved engine performance.
How do I know if my roller rockers are bad?
- If you notice excessive noise, wear, or inconsistent valve movement, your roller rockers may be compromised. Regular inspection and maintenance, as recommended for Proform roller rockers, are essential.
Will these work with a 305 with 305 Vortec heads?
will these rockers work on a 1995 lt1 one with aluminum heads
I already own these rockers and I'm planning on doing a vortec swap. what modifications will need to be made in order to run these rockers on a vortec head
Will these rockers work with a hydraulic flat tappet cam with out having to get different push rods
Are the rockers self aligning? Will they work on Cast iron Vortec heads?
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