rod length

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Mar 5, 2008 | 01:09 PM

rk rumbler

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rod length

i am about to install a 212/218 on a 114lsa in a 5.3 and i was wondering if u need to change the rods and if so what size

Mar 5, 2008 | 01:22 PM

1slow01Z71

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From: Austin, TX

7.4" comps

Mar 5, 2008 | 02:42 PM

hirdlej

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You don't have to change the rods but you should. Studies have shown in higher RPM ranges the stock LSx pushrods have a tendency to deflect and slightly bow causing a sudden loss of high RPM HP and torque. You will see how irratic the powerband gets. I don't have my LS1 book here at work to scan in the graphs but it's quite interesting.