Pushrod Length
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Teching In
Joined: Dec 2018
Posts: 13
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Pushrod Length Doing H/C/I on my 99 C5. Got the below numbers for pushrod measurements(zero lash numbers, no preload added). Measured with comp adjustable pushrod, 12" calipers, TDC compression stroke verified a few doing EO/IC as well.
Do these seem unusual at all? the #1 exhaust concerns me a little but I've checked it a couple times, made sure lifter wasn't stuck in tray etc... SBE LS1, 60cc MMS 220 heads, Johnson 2110 lifters, .040 gasket.
What would y'all do for pushrods? I can't order 1 length and get all of them in the .035 +/- .015 preload range for these lifters.
1i 7.321
1e 7.303
2i 7.333
2e 7.320
3i 7.327
3e 7.323
4i 7.327
4e 7.310
5i 7.321
5e 7.316
6i 7.332
6e 7.330
7i 7.329
7e 7.326
8i 7.336
8e 7.315
Do these seem unusual at all? the #1 exhaust concerns me a little but I've checked it a couple times, made sure lifter wasn't stuck in tray etc... SBE LS1, 60cc MMS 220 heads, Johnson 2110 lifters, .040 gasket.
What would y'all do for pushrods? I can't order 1 length and get all of them in the .035 +/- .015 preload range for these lifters.
1i 7.321
1e 7.303
2i 7.333
2e 7.320
3i 7.327
3e 7.323
4i 7.327
4e 7.310
5i 7.321
5e 7.316
6i 7.332
6e 7.330
7i 7.329
7e 7.326
8i 7.336
8e 7.315
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Joined: Dec 2017
Posts: 2,180
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Those look pretty believable to me. None are totally beyond the pale or anything.
Divide them up into Is & Es. I think you'll be happier with your numbers. Looks to me like your E valves have needed more grinding than the Is, is all. I think you can get 8 & 8 and get within your desired tolerance.
Divide them up into Is & Es. I think you'll be happier with your numbers. Looks to me like your E valves have needed more grinding than the Is, is all. I think you can get 8 & 8 and get within your desired tolerance.
Last edited by grinder11; Aug 31, 2023 at 05:09 PM.
