4.8 mods question
#1
4.8 mods question
well not sure how many of u guys still runing a 4.8 with heavly modded dont wana switch to bigger motor wana get the best out of this 4.8 in my rcsb right now it has 222/224 cam tune headers cai fans on 20s any ideas wat head/intake combo would help out the best for 4.8 was thinkin of going with some 430 gears and a 3600 stall for track right now has 342s gears which kill me from low end
#3
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the cam is whats killing your low end. I had that in a 5.3 and it was a dog down low. You need at least a converter that stalls to at least 3600 to get it to move decent. Mine didnt come alive until around 3500 in the 5.3.
#5
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pull the heads and mill them 30
Get some shorter push rods.
TB SS intakes or the NNBS intakes work great. Be sure to get the fuel rail, your current one will not fit.
FAST 90 intakes pop up all the time on LS1tech. But you'd have to get the fuel rails, fuel lines, and the fuel rail mounts. This can all swap over once you do a 6.0 swap
What year is your truck?
Get some shorter push rods.
TB SS intakes or the NNBS intakes work great. Be sure to get the fuel rail, your current one will not fit.
FAST 90 intakes pop up all the time on LS1tech. But you'd have to get the fuel rails, fuel lines, and the fuel rail mounts. This can all swap over once you do a 6.0 swap
What year is your truck?
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I wanted to do the trailblazer intake swap, is it only off the SS models? or do the 5.3 models intake the ones we after? is that just a pull old intake off from the 4.8 and thow this one on? or do we have to swap out injectors and rails or get new ones or is there a sticky about the swap?
I saw a few intakes on Ebay off a trail blazer
I saw a few intakes on Ebay off a trail blazer
#10
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I wanted to do the trailblazer intake swap, is it only off the SS models? or do the 5.3 models intake the ones we after? is that just a pull old intake off from the 4.8 and thow this one on? or do we have to swap out injectors and rails or get new ones or is there a sticky about the swap?
I saw a few intakes on Ebay off a trail blazer
I saw a few intakes on Ebay off a trail blazer
You need the fuel rail also, the older 3 bolt style will not work.
Your old injectors, MAP and EVAP sensors will swap over.