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Who's running an LS7 lifter with 59cc heads??

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Old 06-14-2009, 09:09 AM
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Default Who's running an LS7 lifter with 59cc heads??

If you're running an ls7 lifter with 59cc heads, what length pushrods are you using? I know I have to get a length checker to be 100 percent sure but I'm just curious as to what you guys are using.
Thanks in advance.
Old 06-14-2009, 09:16 AM
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i was running them with a 58cc head, stock gm mls gaskets and using a 7.400
Old 06-14-2009, 10:08 AM
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run the stock ls1 length 7.4" no need to change lengeths.
Old 06-14-2009, 10:24 AM
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the actual lifters are the same length from end to end. However, the part where the pushrod sits (the part that matters) on the LS7 lifter, the actual cup sits "higher" than a stock LS1 lifter. If you use too long of pushrods, you could cause your lifters to have too much preload, which can lead to lifter damage and failure.

For those of you doubting, why? It's a $20 tool, to do it right.
Old 06-14-2009, 11:10 AM
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Im running 7.4's.
Old 06-14-2009, 12:04 PM
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measure, whatever poeple run doesn't matter.




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