1973 351 cleveland can you ID these valve springs?
#12
Ok I have checked out my old cam, turns out it is the exact same one I was going to order.
Competition cam 32-221-3. The springs look and measure the exact same as the ones that are in the kit that comes with the cam. But I checked and I do have the multi groove valves, I assume they are the stock style 2 piece ones that are crapola. I just do not have the money for new valves right now, so I am going to get this cam and try it.
http://www.autozone.com/autozone/par...6_1489%2C58670
What do you think?? The springs installed height meets the manufacturer requirements.
Also does anyone know why my old cam was so worn on 6 lobes?? 6 lobes were badly worn down while the other lobes looked perfect. 1 lobe was almost round it was so worn.
Competition cam 32-221-3. The springs look and measure the exact same as the ones that are in the kit that comes with the cam. But I checked and I do have the multi groove valves, I assume they are the stock style 2 piece ones that are crapola. I just do not have the money for new valves right now, so I am going to get this cam and try it.
http://www.autozone.com/autozone/par...6_1489%2C58670
What do you think?? The springs installed height meets the manufacturer requirements.
Also does anyone know why my old cam was so worn on 6 lobes?? 6 lobes were badly worn down while the other lobes looked perfect. 1 lobe was almost round it was so worn.
#13
someone probably used old lifters with the new cam...also modern oils are missing the zinc although there are some oils out there like ones for diesels that still have the zinc and also some specialty oils
http://www.carcraft.com/howto/ccrp_0...m/viewall.html
http://www.carcraft.com/howto/ccrp_0...m/viewall.html
#14
from the article
Engine Oils Containing Higher Levels of Zinc Phosphate
BRAND WEIGHT
Castrol Tection Extra 15W-40
Chevron Delo 400 15W-40
Mobil Delvac 1300 15W-40
Shell Rotella T 15W-40
Quaker State Q Racing 0W-5, 15W-50, and 17.5W-35
Joe Gibbs Racing MicroZol 0W-20, 10W-30
Engine Oils Containing Higher Levels of Zinc Phosphate
BRAND WEIGHT
Castrol Tection Extra 15W-40
Chevron Delo 400 15W-40
Mobil Delvac 1300 15W-40
Shell Rotella T 15W-40
Quaker State Q Racing 0W-5, 15W-50, and 17.5W-35
Joe Gibbs Racing MicroZol 0W-20, 10W-30
#16
WOW..I never knew that about the zinc. I will definitely go with a high zinc oil from now on in my mustang. I thought that maybe some bad lifters were possibly the cause. Does the low zinc oils cause lifter problems??
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