Cam and springs for 4.8 build
Need to be more specific… Power level? Turbo/fuel used? RPM desired? Boost level? Budget?
4.8’s are a bit gutless down low. To take advantage of their Rev happy nature I think a cam can make a huge difference. You would need springs to match the cam and the boost levels you plan on running. Then you need the right converter and gearing to match the cam. If you don’t run a combination of parts that work well together, you’ll be disappointed. If you don’t’ have the budget to properly setup a higher revving combo, leave it alone. Throw in some cheapo PAC 1218’s or comp equivalent single beehive spring and be done with it
4.8’s are a bit gutless down low. To take advantage of their Rev happy nature I think a cam can make a huge difference. You would need springs to match the cam and the boost levels you plan on running. Then you need the right converter and gearing to match the cam. If you don’t run a combination of parts that work well together, you’ll be disappointed. If you don’t’ have the budget to properly setup a higher revving combo, leave it alone. Throw in some cheapo PAC 1218’s or comp equivalent single beehive spring and be done with it
Staging Lane
Joined: Jul 2012
Posts: 86
Likes: 0
From: Detroit, MI
Need to be more specific… Power level? Turbo/fuel used? RPM desired? Boost level? Budget?
4.8’s are a bit gutless down low. To take advantage of their Rev happy nature I think a cam can make a huge difference. You would need springs to match the cam and the boost levels you plan on running. Then you need the right converter and gearing to match the cam. If you don’t run a combination of parts that work well together, you’ll be disappointed. If you don’t’ have the budget to properly setup a higher revving combo, leave it alone. Throw in some cheapo PAC 1218’s or comp equivalent single beehive spring and be done with it
4.8’s are a bit gutless down low. To take advantage of their Rev happy nature I think a cam can make a huge difference. You would need springs to match the cam and the boost levels you plan on running. Then you need the right converter and gearing to match the cam. If you don’t run a combination of parts that work well together, you’ll be disappointed. If you don’t’ have the budget to properly setup a higher revving combo, leave it alone. Throw in some cheapo PAC 1218’s or comp equivalent single beehive spring and be done with it
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Verdad Gallardo I ran that exact same setup on a 5.3 making well over 500hp.
I'd suggest a loose converter as that cam will accentuate the gutlessness of the 4.8 down low. What ECM U plan on using? GEN3 or GEN 4 engine? While the LS9 cam looks cheap, remember you need to add the price of the correct timing cover/sensor/cam gear.
Much better cams out there. An LS1 cam can usually be picked up dirt cheap and is a good upgrade over the truck cams IMO.
I'd suggest a loose converter as that cam will accentuate the gutlessness of the 4.8 down low. What ECM U plan on using? GEN3 or GEN 4 engine? While the LS9 cam looks cheap, remember you need to add the price of the correct timing cover/sensor/cam gear.
Much better cams out there. An LS1 cam can usually be picked up dirt cheap and is a good upgrade over the truck cams IMO.
Thread Starter
Staging Lane
Joined: Feb 2015
Posts: 82
Likes: 0
Thread Starter
Staging Lane
Joined: Feb 2015
Posts: 82
Likes: 0
Check this out and see if it doesnt help you with some of your questions.
https://ls1tech.com/forums/forced-in...en-sigmon.html
https://ls1tech.com/forums/forced-in...en-sigmon.html
Launching!
Joined: Oct 2006
Posts: 201
Likes: 0
From: Grand Rapids, MI
Jack
Thread Starter
Staging Lane
Joined: Feb 2015
Posts: 82
Likes: 0
This looks to be the way I will be going.
Does anyone have a suggested injector size? Looks like quite a few use 80lb injectors. I'll only be using pump gas.