ls1 cam to big for stock valvetrain?

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May 24, 2004 | 05:57 PM

dubrado

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From: texas

ls1 cam to big for stock valvetrain?

Swapping the 5.3 shortblock for an ls1 shortblock, will the ls1 cam be to big for the stock springs?

Will I need new pushrods, lifters, or anything else?
Will the complete stock 5.3 head be ok?

thanks

May 24, 2004 | 06:00 PM

one03sierra

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From: league city texas

if it is a low lift model and not a ls6 cam then you will be ok.

May 24, 2004 | 07:02 PM

dubrado

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From: texas

Quote:

Originally Posted by 02denali

if it is a low lift model and not a ls6 cam then you will be ok.

how will i know the difference? I plan to buy a used shortblock off someone, dunno who yet.

I though all ls1's came w/about the same cam or does it vary by year?

May 24, 2004 | 07:41 PM

FILE

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From: Truck Heaven

the stock springs are good for a 500 lift or less. Any ls1 cam would work fine in there. The ls6 cam lift does exceed 500 so you will need stiffer springs if you go that route.