"Old School" Stocker Cams

Race Clean · 10-30-2020, 09:59 AM

Quote:

Originally Posted by GTX JOHN

These Old School Cams are BRUTAL on the Valvetrain
and we do not recommend them to most people!.

Remember going from a "C.D. 7000+" to a G.K.,it was a brutal valve train experience!!
From getting over 7000rpm to struggle to get it running over 6000 and lots of broken valve train parts,but it was a good thing to learn first hand that higher spring pressures not necessary gave you more trouble as you thought some 30+ years ago, braking parts is not the best way to spend your Racing-money but to find out and learn things that way is what keeps us interested keeping doing this, well for me anyway(nowadays I know that

) If it was the driving part I think there are lot better options for that

p.s.
My experience is the same as Johns about newer Cams,I never found much, with that said I never had or worked on a Stocker "induction system" that benefitted from 8000rpm so I must have some real junk

Greg Reimer 7376 · 10-30-2020, 11:17 AM

When I look back 35 or so years ago when I started doing this stuff with a 283, I remember when Stock meant more stock than I care to think about--OEM or OEM replacement valves, cast OEM pistons, OEM rods, etc. and very close to pure stock heads, it proves we pushed the limits of the laws of physics every time we attempted to do this. It's amazing we never had any fatal engine failures more often than we did. I remember running that very close to original stock engine to nearly 7000 RPM many times. If you stayed in low gear a it too long and you heard the engine putter a bit, it obviously was floating the valves, get it into the next gear ASAP and hope you didn't bend anything or have any portion of the valve train bend or start to break. Then, the cam and spring rule change came in around 1988 or so, add about 800 more RPM to what we were already doing to the same engine combo, add more rear gear, and then note any increase. If we knew then what we know now, it would have terrified us to think of what was going on inside of that motor at 7000+ RPM. The stuff we have now to work with is so much superior to what we had then, it's unbelievable. I'm not bemoaning the departure from the old concept of a "Stock Eliminator"motor,I'm glad that most of the technology since then has resulted in vastly increased engine life as well as power outputs unheard of 35 years or so ago, so I am among the first to embrace technology that will improve the sport. Besides, it's fun to go faster!

10-30-2020, 11:17 AM	#2
Greg Reimer 7376 VIP Member Join Date: Nov 2008 Location: Glendora,Calif. Posts: 1,137 Likes: 172 Liked 719 Times in 220 Posts	Re: "Old School" Stocker Cams When I look back 35 or so years ago when I started doing this stuff with a 283, I remember when Stock meant more stock than I care to think about--OEM or OEM replacement valves, cast OEM pistons, OEM rods, etc. and very close to pure stock heads, it proves we pushed the limits of the laws of physics every time we attempted to do this. It's amazing we never had any fatal engine failures more often than we did. I remember running that very close to original stock engine to nearly 7000 RPM many times. If you stayed in low gear a it too long and you heard the engine putter a bit, it obviously was floating the valves, get it into the next gear ASAP and hope you didn't bend anything or have any portion of the valve train bend or start to break. Then, the cam and spring rule change came in around 1988 or so, add about 800 more RPM to what we were already doing to the same engine combo, add more rear gear, and then note any increase. If we knew then what we know now, it would have terrified us to think of what was going on inside of that motor at 7000+ RPM. The stuff we have now to work with is so much superior to what we had then, it's unbelievable. I'm not bemoaning the departure from the old concept of a "Stock Eliminator"motor,I'm glad that most of the technology since then has resulted in vastly increased engine life as well as power outputs unheard of 35 years or so ago, so I am among the first to embrace technology that will improve the sport. Besides, it's fun to go faster!