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S&S quickies vs. Adjustables vs. solid pushrods

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Old Aug 4, 2022 | 10:56 AM
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Originally Posted by Harley1004
During the first top end rebuild, I dropped to a .030 cometic Head gasket, and I used the S&S quickies then, and I reused them on this second top end. So, here I am. By default, I’m just wondering what the majority has to say about using the quickies and if they flex, versus the other two styles of pushrods
All depends on what you have changed in the engine. If you've gone with a cam that has aggressive lobe profiles or high pressure valve spring, YES they flex. Now it your spring pressures are at or near stock and a stock or mild cam profile they will be fine.
 
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Old Aug 4, 2022 | 02:01 PM
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Originally Posted by Steve Cole
All depends on what you have changed in the engine. If you've gone with a cam that has aggressive lobe profiles or high pressure valve spring, YES they flex. Now it your spring pressures are at or near stock and a stock or mild cam profile they will be fine.
I have the S&S 570 easy starts in the cam chest along with an upgraded billet support plate and oil pump and billet tensioner‘s and and new tensioner pads, I have tested good, stock beehive valve springs, with a 1.9 intake valve.
 
Last edited by Harley1004; Aug 4, 2022 at 02:09 PM.
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Old Aug 4, 2022 | 04:10 PM
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Originally Posted by Harley1004
I have the S&S 570 easy starts in the cam chest along with an upgraded billet support plate and oil pump and billet tensioner‘s and and new tensioner pads, I have tested good, stock beehive valve springs, with a 1.9 intake valve.
Plenty running that configuration with OEM solid and a variety of adjustables with no issues.
 
Last edited by djl; Aug 4, 2022 at 04:11 PM.
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Old Aug 4, 2022 | 04:24 PM
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Originally Posted by Harley1004
I have the S&S 570 easy starts in the cam chest along with an upgraded billet support plate and oil pump and billet tensioner‘s and and new tensioner pads, I have tested good, stock beehive valve springs, with a 1.9 intake valve.
With that combo I'd use the S&S quickies you already have and not worry about it
 
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Old Aug 5, 2022 | 10:06 PM
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Thanks for all the replies. The information and knowledge much appreciated.
 
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Old Aug 18, 2022 | 11:17 PM
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Started new thread. “Push rod hitting push rod tube…”
 
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