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Discussion in 'High Tech Retrofits' started by ctchap70, Jul 24, 2011.
Anyone know what is involved? Anyone on here done it?
Your better off from what I have read is starting with the 5.7 if that is what you want. Otherwise the 5.3 can be made to make just as much power.
The difference is the bore. They share the same stroke. I'm not sure if you can bore out a 5.3 block that far... maybe?
I suppose the better question is- with the availability of all the other LSx stuff out there, why bother?
See what I thought about was using the motor an trans from my 05 silverado after it gets paid off not too long from now. Just a thought.
Sure you can. You end up with an iron block LS 1.
And then do what with the truck? Seems silly to me when you can find a good 6.0 out of a wrecked truck and the 6.0 is a much better engine than the 5.3 or 5.7 lsx.
Well it's like this, my truck has 105k miles on it. It had 27k on it when I started using royal purple an k&n filters. So I know I got a good engine an trans, computer & all accessaries. The truck has a lemon title, though I've not had a lick of trouble wit it. Some minor body damage, yup a deer, so I don't know how much I could sell it for. I got the 5.3 to 5.7 from a car craft article a couple mths ago. But they didn't get detailed in the conversion and had plenty of parts at their disposal. So anybody done this on here before? Thanks again, Charlton.
5.3 to 5.7 ls1
there is a book titled "how to build high performance chevy ls1/ls6 v-8s"
by Will Handzel that explaines this in great detail including GM part numbers for
needed parts.The 5.3 cast iron block needs to be bored to 99 mm.but the block
should have enough "meat"to allow machining that far.
Thanks. Think I'll look it up. Charlton.
This months issue of HotRod has a interesting 5.3. Twin turbo. Stock bottom end. 1200hp. The pulled it apart and found out it was a 4.7, so they say.