Biggest baddest 4.8
09-19-2004 | 03:41 PM
#1
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On The Tree
Joined: Sep 2004
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Biggest baddest 4.8
Alright guys here it is. I want to stay with my 4.8 block!!!! I want to know from everyone how to make her mean as hell. Again 4.8 block no holds barred. Nitrous, heads, cam, intake, s/c, bored block, etc. everything and give a projected hp output. Just wanting to see what you guys think you can get out of her, fixing to get another block and go to work. Wanting to make sure I don't miss anything in the build.
Thanks
Josh
Thanks
Josh
09-19-2004 | 04:00 PM
#3
TECH Addict
Joined: Feb 2003
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From: Geneseo, NY
4.8 bore and stroke is 3.780" x 3.270"....even at an .030" overbore (3.810") and a 4.00" stroke (and I'm not even sure you can go with that long of a stroke on a 4.8) you'd only get to 364cid.....that's the STOCK displacement of a 6.0, Even adding a set of Stage II heads and a TR224 cam would only get you into the 360hp range
Starting with a 4.8 is just not the way to buld killer horsepower.....IMHO swap it out for a 6.0 and go from there
Starting with a 4.8 is just not the way to buld killer horsepower.....IMHO swap it out for a 6.0 and go from there
09-19-2004 | 04:11 PM
#6
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Joined: Feb 2003
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From: Geneseo, NY
Originally Posted by Texas4x4
how long does a 4l60e hold up to a stock 6.0?
but to answer the question....It'll last a pretty long time at stock power levels but as soon as you start modding the 6.0 it'll blow up fast
littlered4.8.....the 5 speed will help you to plant the power from whatever engine combo you choose a little better, but the stock clutch SUCKS !!!
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09-19-2004 | 04:37 PM
#9
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On The Tree
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Oh yeah I know all about the clutch I've had to quit racing because of the probs with it. I'll be rebuilding in not to near future. The 4.8 and 5.3 blocks are the same and just out of s/c guys are getting 350rwh. Want something I can drive still but when I want to turn it loose it'll be there. At that point it won't be an every day driver. Just wanted to see what kind of combo's everyone else could think of. Yelo with 360hp you could s/c and nos from there that would be plenty hp. Have you heard of any upgrades for the 5spds??
09-19-2004 | 04:51 PM
#10
Launching!
Joined: Apr 2003
Posts: 280
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From: Fresno, CA
Originally Posted by Yelo
4.8 bore and stroke is 3.780" x 3.270"....even at an .030" overbore (3.810") and a 4.00" stroke (and I'm not even sure you can go with that long of a stroke on a 4.8) you'd only get to 364cid.....that's the STOCK displacement of a 6.0, Even adding a set of Stage II heads and a TR224 cam would only get you into the 360hp range
Starting with a 4.8 is just not the way to buld killer horsepower.....IMHO swap it out for a 6.0 and go from there
Starting with a 4.8 is just not the way to buld killer horsepower.....IMHO swap it out for a 6.0 and go from there
Or do you mean 360 hp at the crank on a 4.8?