Why Copper Coating is Used
Preventing Embrittlement: While the cam lobes need to be extremely hard to resist wear, the core (shaft) must remain ductile to withstand the immense torsional stress and high spring pressures in the valvetrain. If the whole shaft were hardened, it would likely snap under load.
Comp Cams Camshaft Heat Treatment Explained
https://performancewholesale.com.au/...ment-explained
.
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE