Single or twins

clrussell

pro-procrastinator
Sep 23, 2013
5,928
399
83
Which fits your budget better? Haha.. 480'over stick will be great.. 68 will be a lot more simple and easier to install
 

minerigger

Active member
Dec 24, 2013
2,660
1
38
Casper, WY
Or get a modded lbz turbo and a 480. Aren't the lbz a little better than the lmm turbo? If you go twins I'd definitely port polish rebuild the stock at minimum
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,670
5,817
113
Phoenix Az
towing 8k on the 468 wont be real fun unless you dont mind down shifting on any slight hill you come to.
 

minerigger

Active member
Dec 24, 2013
2,660
1
38
Casper, WY
I just know after having enough stock turbos in my hands and seeing how much Russell improved the ihi with a port and polish and how much even the lly-lml have that can be removed I'd almost rather have a port polished stock turbo than an aftermarket.
 

Harbin_22

Active member
Dec 4, 2010
3,858
7
38
Southern Indiana
Why a 480? A 75 will spoil quicker and make enough power to destroy your bottom end. I loved the way my truck drove with stocker/billet 475. Ran 7.2x mid 11's with junk transmissions and could harldy make it smoke with 40% Inj. EGT's stay in check all the time. Absolutely no issues towing whatever you want.
 

kiwilml

Member
Nov 4, 2015
454
0
16
I have a 68 single and it'll tow heavy just fine.. Just have to keep rpms around 2000, normally 5th gear is good to go.. Just don't wanna use cruise in any hills though..

Compounds will definitely be more friendly, but I do like the simplicity of a single and also the sound of a single fixed vane lol.
 

WolfLMM

Making Chips
Nov 21, 2006
4,005
25
48
38
AL
I'm with Harbin. But I'll add this, you WILL be well within piston cracking territory. And honestly with IMO, you will lose a piston before bending a rod on lbz/lmm. JMHO
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,670
5,817
113
Phoenix Az
Why a 480? A 75 will spoil quicker and make enough power to destroy your bottom end. I loved the way my truck drove with stocker/billet 475. Ran 7.2x mid 11's with junk transmissions and could harldy make it smoke with 40% Inj. EGT's stay in check all the time. Absolutely no issues towing whatever you want.

i noticed 0 difference in spool up going from a box stock 75 to a box stock 80. top end had more pull though. your old 83 i noticed a little lag but nothing that held the valley charger from spooling up, you just notice it in the transition of boost where the stock one starts to peak the big one finally starts coming in strong. if anything, that may be where you notice the difference in the 75 and 80 but i never could tell. my god does the 83 pull hard up top though. i can still make 17-19psi of boost with the 83 and a total of 35-37psi at 2k rpm without trying. WOT at the same RPM i can hit 45psi and it increases as RPM increases.

I have a 68 single and it'll tow heavy just fine.. Just have to keep rpms around 2000, normally 5th gear is good to go.. Just don't wanna use cruise in any hills though..

Compounds will definitely be more friendly, but I do like the simplicity of a single and also the sound of a single fixed vane lol.

yup! these kinds of threads all come down to how you like to drive the truck. all we can do is provide honest feed back and blue will have to figure out what suits him best.
 

blue09dmaxx

Too broke for this shit
Jan 15, 2012
823
0
0
The south
Why a 480? A 75 will spoil quicker and make enough power to destroy your bottom end. I loved the way my truck drove with stocker/billet 475. Ran 7.2x mid 11's with junk transmissions and could harldy make it smoke with 40% Inj. EGT's stay in check all the time. Absolutely no issues towing whatever you want.

480 has more room to grow plus I can get one at better price than a 75
 

blue09dmaxx

Too broke for this shit
Jan 15, 2012
823
0
0
The south
I have a 68 single and it'll tow heavy just fine.. Just have to keep rpms around 2000, normally 5th gear is good to go.. Just don't wanna use cruise in any hills though..

Compounds will definitely be more friendly, but I do like the simplicity of a single and also the sound of a single fixed vane lol.

That's my issue, I like the less cluttered appeal, weighs less plus the sound rips
 

blue09dmaxx

Too broke for this shit
Jan 15, 2012
823
0
0
The south
I'm with Harbin. But I'll add this, you WILL be well within piston cracking territory. And honestly with IMO, you will lose a piston before bending a rod on lbz/lmm. JMHO

I'm plenty aware been there done that parted out the built motor truck to buy a bigger house.
 

DMAX497

New member
Sep 27, 2012
398
0
0
Utah
S400 w/ stock compounds. I've had s400 singles and nothing is funner, drives better, tows better on the street besides s400 w/ vvt.