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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

bent pushrods after cam install

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Old May 31, 2008 | 02:49 PM
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Default bent pushrods after cam install
my buddy installed a cam and then bent his pushrods. how could he put the cam or timing gears in wrong?
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Old May 31, 2008 | 02:56 PM
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Originally Posted by powers84
my buddy installed a cam and then bent his pushrods. how could he put the cam or timing gears in wrong?
There are numerous ways to do it wrong. What is the lift of cam? Which rockers did you use? Ratio? Were the springs changed?

Sounds like spring coilbind, and the weakest link was the stock pushrods.
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Old May 31, 2008 | 03:00 PM
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does a 94 z28 lt1 have a different style cam the the 97's besides the cam dowel pin?
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Old May 31, 2008 | 03:01 PM
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everything is stock the cam is a cc305 he was going to put a cc503 but sent him the wrong one. its a .510 .510 276 290 lift cam
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Old May 31, 2008 | 03:05 PM
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i have a 97 timing gear and its differnt then his 94 gear why is this? the teeth are all off.
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Old May 31, 2008 | 03:07 PM
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Originally Posted by powers84
does a 94 z28 lt1 have a different style cam the the 97's besides the cam dowel pin?
The cam styles are the same

Originally Posted by powers84
everything is stock the cam is a cc305 he was going to put a cc503 but sent him the wrong one. its a .510 .510 276 290 lift cam
The springs could not take the lift, they bound, and bent the pushrods. So at a minimum you will need to change the pushrods, replace the valve springs, and HOPE the lifters and cam are ok...

How may miles or minutes before they bent?
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Old May 31, 2008 | 03:09 PM
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Originally Posted by powers84
i have a 97 timing gear and its differnt then his 94 gear why is this? the teeth are all off.
97 has a crank trigger on TC
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Old May 31, 2008 | 03:13 PM
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Originally Posted by powers84
i have a 97 timing gear and its differnt then his 94 gear why is this? the teeth are all off.
What do you mean the teeth are all off? Are you talking about the gear 'teeth' that drives the water pump drive? Your car might have an electric water pump and therefore, the person changed and used a dfferent timing chan gear...
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Old May 31, 2008 | 06:16 PM
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well just so everyone knows my buddy did this and im trying to fix it and i did. he never lined the dots on the timing gear so it was really off its only his 2nd time doing a cam and the first 1 i did most of the work thanks for the info
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Old May 31, 2008 | 06:30 PM
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did the thing even fire with the timing being off that much?
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Old May 31, 2008 | 06:38 PM
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Originally Posted by powers84
i have a 97 timing gear and its differnt then his 94 gear why is this? the teeth are all off.
What did you mean by the teeth are missing?
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