New 4.8 in the truck
#1
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New 4.8 in the truck
I got my truck back today with a brand new engine. Heads and all. I had it a Timmers Chevrolet and they did a great job of helping me get this done. I'll give them an A+. My warranty company wanted to put a used one back in it but Timmers worked with me and them to get a new one with only a little out of pocket cash from me. I paid the core on the old motor and will get it home too. Now I have a full 4.8 engine that's not in the truck to play with. What to do what to do ??? Just so you will know, I tried almost everything I could to get a 6.0 or a 5.3 put back, but because they are a dealer, they couldn't. I guess I'll just have to build a monster with the old one. I think I may use my old heads and get a P/P and swap them out first <img src="gr_grin.gif" border="0">
Then go into the block and start playing. BTW the failure was due to a hole in the #5 piston. I am pleading the 5th amendment on any reason or speculation to what may have caused that. <img src="images/icons/rolleyes.gif" border="0"> <img src="graemlins/gr_devil.gif" border="0" alt="[devil]" />
[ January 30, 2002: Message edited by: Fast4.8 ]</p>
Then go into the block and start playing. BTW the failure was due to a hole in the #5 piston. I am pleading the 5th amendment on any reason or speculation to what may have caused that. <img src="images/icons/rolleyes.gif" border="0"> <img src="graemlins/gr_devil.gif" border="0" alt="[devil]" />
[ January 30, 2002: Message edited by: Fast4.8 ]</p>
#3
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Re: New 4.8 in the truck
Well, the most you could do with the 4.8L block is build a 5.3L out of it, but it would make a better boat anchor. Hahaha! The heads are good though, and now you probably have a spare set of coil packs, injectors, etc...
Better jet that dry shot down and run some AutoTap numbers on it before you use it.
Tony
Better jet that dry shot down and run some AutoTap numbers on it before you use it.
Tony
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Re: New 4.8 in the truck
I didnt think it would take you long to harrass me. Why cant I do more than a 5.3? Can't I bore it out, and drop some beefed up 6.0 heads on it, cam, forged pistons, crank, and rods and two stage 300 shot to it? There I got thinking out loud again. Allright Tony, put your brain to work and give me ideas and advice on how to make this engine run. Project time..... <img src="gr_grin.gif" border="0"> <img src="gr_grin.gif" border="0">
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Re: New 4.8 in the truck
This guy has a 5.3/4.8 block bored over to near standard LS1 size:
https://ls1tech.com/ubb/cgi-bin/ulti...c&f=7&t=001148
Bore it to that diameter, then use a stock LS1 crank, rods, and pistons. Honestly though, I don't know how well the block would hold up with that large of a bore (from 96mm to 99mm I think).
https://ls1tech.com/ubb/cgi-bin/ulti...c&f=7&t=001148
Bore it to that diameter, then use a stock LS1 crank, rods, and pistons. Honestly though, I don't know how well the block would hold up with that large of a bore (from 96mm to 99mm I think).
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Re: New 4.8 in the truck
$4,000 <img src="gr_eek2.gif" border="0"> Ok let's rethink this. The 5.7 is sounding much better now. How about 100 dry and 150 wet 2nd stage????? I have all summer to do this.
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Re: New 4.8 in the truck
they do have the same stroke, but different bore. so i believe you could keep the crank but would still have to buy pistons / rods. not 100% positive though