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Started By
Message
re: OB Gearheads
Posted on 2/13/14 at 8:12 pm to greasemonkey
Posted on 2/13/14 at 8:12 pm to greasemonkey
I would kill to have an 8.1 vortec and ZF6 in a brand new single cab 3/4 ton
0
Posted on 2/13/14 at 9:13 pm to meauxjeaux2
quote:
As In poured Seafoam down the lifter bore? ?
pour a bottle in the oil.
I use 0w-20 oil and a bottle of seafoam. dont rev over 2500rpms with a whole bottle of sf in crankcase. run for 20-30 min at around 2000rpm.
Change oil with 5w-30
Never use lucas stabilizer in tha afm engine.
Posted on 2/13/14 at 9:17 pm to greasemonkey
Should have said no lucas in any ls. not just afm engines.
Dont use any thicker tha 10/30 in summer and i use 5/20 in winter in the ls
Dont use any thicker tha 10/30 in summer and i use 5/20 in winter in the ls
Posted on 2/13/14 at 9:21 pm to greasemonkey
Got it. Thanks. These things came out after my professional wrench turning years so its kinda tough to diagnose.
Posted on 2/13/14 at 9:39 pm to meauxjeaux2
No problem.
Everybody here drives chevys,so ive worked on my share.
My buddy just bought a 91 mustang
dart block421ci,dart heads,sheet metal intake,f.a.s.t. Electronics.reid powerglide,fab9 rearend,full kooks exhaust,nx fogger,anthony johnson kmember.
We are in tge process of putting twin 66mm turbos on it.
Its 25.3c cage. Sob got it for $10000 we fixin to hqve one of the fastest street cars around that i get to drive but dont have to pay for. yea me
Everybody here drives chevys,so ive worked on my share.
My buddy just bought a 91 mustang
dart block421ci,dart heads,sheet metal intake,f.a.s.t. Electronics.reid powerglide,fab9 rearend,full kooks exhaust,nx fogger,anthony johnson kmember.
We are in tge process of putting twin 66mm turbos on it.
Its 25.3c cage. Sob got it for $10000 we fixin to hqve one of the fastest street cars around that i get to drive but dont have to pay for. yea me
Posted on 2/13/14 at 9:42 pm to greasemonkey
MJ
if its already clackin hard I wouldnt waste my time.
If its just tappin,good chance it will work.
if its already clackin hard I wouldnt waste my time.
If its just tappin,good chance it will work.
Posted on 2/13/14 at 9:46 pm to HeadSlash
I would look for a lq4. The lq9 is the more sought after motor because people generally think they have more power and they do but very slightly and only because its a little different piston. Look for an lq4 out of a 3/4 ton truck an h2 or van that's wrecked. Take it out will be plug and play and then take it to a speed shop and have a custom tune put on it. Cam would also be a big help and would be easy to put in while you still had the motor on a stand.
Posted on 2/13/14 at 10:09 pm to greasemonkey
Intake lifter on #7 is completely compressed. Took the rocker cover off and tbe rocker arm is free. Like 1/2" of free play. Ran two quarts of ATF and half a bottle kf Marvel through it today with no luck. Changed the oil and filter with 5w30 and Delco filter. Did not unlock that damn lifter at all. 
Posted on 2/13/14 at 10:15 pm to meauxjeaux2
Thats not good. spring inside lifter is broke.
Its not much more to buy a used non afm 5.3 and have ecu flashed than to replace lifters.
Did you see post above about our new toy.
Its not much more to buy a used non afm 5.3 and have ecu flashed than to replace lifters.
Did you see post above about our new toy.
Posted on 2/13/14 at 10:21 pm to greasemonkey
Yes I did. I had one similar except I had a full aluminum 6 bolt splayed SVO block and twin 88's. 
Y'all gonna have some fun with that beast. Get the FAST fuel management system with wideband O2 sensors for tuning that bad boy.
BTW, Thkse AFM lifters have external springs that ride on top. The locking mechanism ks controlled by adding oil pressure via the Oil pressure manifold under the intake. Kinda weird that added oil pressure actually deactivates the lifters.
Y'all gonna have some fun with that beast. Get the FAST fuel management system with wideband O2 sensors for tuning that bad boy. BTW, Thkse AFM lifters have external springs that ride on top. The locking mechanism ks controlled by adding oil pressure via the Oil pressure manifold under the intake. Kinda weird that added oil pressure actually deactivates the lifters.
Posted on 2/13/14 at 10:32 pm to meauxjeaux2
The external spring keeps it from majin noise while collapsed. theinternal spring is the one broke. i thought they cut off oil to collapse
We considered 88s or a single 101 but figured 66s would be easier to tune on street.
We considered 88s or a single 101 but figured 66s would be easier to tune on street.
Posted on 2/14/14 at 9:50 pm to meauxjeaux2
quote:
You having some issues with your motor?
Nope, I just want more power. Like Rickey Bobby, I wanna go fast.
Posted on 2/14/14 at 10:03 pm to DirtyMikeandtheBoys
quote:
Message
Posted by DirtyMikeandtheBoys
Just get a new truck
fricking Chevy stopped making the Avalanche. I'm partial to them, I got hit by an 18 wheeler and walked away.
Posted on 2/14/14 at 10:07 pm to HeadSlash
IIRC, 4 Wheeler magazine or Peterson's 4 Wheel and Off-Road swapped an 8.1 into an Avalanche. It was one of their Ultimate Adventure vehicles a few years back
Posted on 2/14/14 at 10:22 pm to Hammertime
That's the best truck engine chevrolet ever built.
Posted on 2/14/14 at 11:27 pm to DownshiftAndFloorIt
You're about to open up a can of worms
Posted on 2/14/14 at 11:28 pm to Hammertime
It's the best truck engine anybody ever built, diesels included.
Put that in your juice box and suck on it for a minute.
Put that in your juice box and suck on it for a minute.
Posted on 2/15/14 at 12:17 am to DownshiftAndFloorIt
quote:
That's the best truck engine chevrolet ever built
L86 ftw
Posted on 2/15/14 at 4:46 am to DownshiftAndFloorIt
4.3
4.8
5.3(pre 07)
5.7
6.0
7.4
?
4.8
5.3(pre 07)
5.7
6.0
7.4
?
Posted on 2/15/14 at 6:19 am to Hammertime
What exactly are you asking?
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