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Push rod question

Old Dec 16, 2015 | 11:42 PM
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Default Push rod question

Ok im new to the ls world..... Ive searched and just needing some advise on a correct push rod length.. Ok here we go. Running lq4 with 317 heads. Had heads milled 0.30 with tsp dual valve springs im using a tsp torquer v2 cam 232/234 .600/.600 lift.... Going to install ls7 lifters while heads are off Maybe somebody can help out a newbie here..

Questions are will 7.4 push rods work?can i make up the difference with a thicker head gasket? If so what kind? I already have tsp 7.4 pr and hate to have to purchase another set
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Old Dec 17, 2015 | 12:35 AM
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You need to purchase an adjustable pushrod checker for $20 and measure for yourself.

Guessing at pushrod length is not good practice
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Old Dec 17, 2015 | 07:11 AM
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Pushrods need to be the correct length. Too long and you may break something - too short and you will have a valve train noise and lose power. Measure for the correct length and then order them that length. Google "measure pushrods for ls1 engine" and you'll have plenty to read.
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Old Dec 17, 2015 | 07:12 AM
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I would go larger OD as well, 11/32 should work.
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Old Dec 17, 2015 | 08:39 AM
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Thanks for the info I'm going to order a push rod checker... guess it's time to learn something new
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Old Dec 17, 2015 | 09:34 AM
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You will most definitely need shorter pushrods so make sure you measure.
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Old Dec 17, 2015 | 09:49 AM
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Originally Posted by Burken01
You need to purchase an adjustable pushrod checker for $20 and measure for yourself.

Guessing at pushrod length is not good practice
This!
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Old Dec 17, 2015 | 10:02 AM
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Originally Posted by vettenuts
I would go larger OD as well, 11/32 should work.
Great advice! Get the beefiest one that will fit. Give Al a call at Manton
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Old Dec 17, 2015 | 10:18 AM
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Gonna order a push rod checker. .that 20 bux will save my motor it's well worth it. Don't know how to use it but I've saw a few you tube vids that explain it so I'll give it the old college try
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