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L31MaxExpress's latest activity
L31MaxExpress
replied to the thread
L29 454 MODS
.
It is not a waste. The stock 454 intake as a whole is restrictive. I had a customer do this with a 4" air intake and a 4" MAF tube with...
Jul 1, 2024
L31MaxExpress
replied to the thread
GMT400 Condenser fan testing
.
My 2011 Pathfinder has a similar electric puller fan. The mechanical is offset to one side of the radiator, electric to the opposite...
Jul 1, 2024
L31MaxExpress
reacted to
GoToGuy's post
in the thread
Unbelievable!
with
Like
.
The carb gestapo operates as if California is the whole planet. These overly anti truck, anti car , rules regulations only work for the...
Jul 1, 2024
L31MaxExpress
posted the thread
GMT400 Condenser fan testing
in
Engine Performance + Maintenance
.
I did some testing on the GMT400 condenser pusher fan like the one my 1999 Tahoe came with from GM. I recently added one to the 1987 G20...
Jul 1, 2024
L31MaxExpress
replied to the thread
Better AC with different size pulley?
.
I am running 91+ octane, 10.25:1 compression, 190-195 psi cranking compression and 34* total at 3,200 rpm and 12.6:1 AFR at WOT. Plugs...
Jun 30, 2024
L31MaxExpress
replied to the thread
Better AC with different size pulley?
.
180F for an iron head engine and 195F an aluminum head engine is perfect. I am running the L31 in the 87 G20 a bit warmer with a 195F...
Jun 30, 2024
L31MaxExpress
replied to the thread
Better AC with different size pulley?
.
Forgot to post this one. That is a GMT400 pusher fan with the shorter bracket flipped upside down and the longer mount legs bent to hold...
Jun 30, 2024
L31MaxExpress
reacted to
CumminsFever's post
in the thread
Blown motor 1997 C3500 5.7 at 68k miles
with
Like
.
If the stock engine was getting you by for whatever you do with the truck, but you'd like a bit more "go", I'd recommend the 383. In my...
Jun 30, 2024
L31MaxExpress
reacted to
someotherguy's post
in the thread
Blown motor 1997 C3500 5.7 at 68k miles
with
Like
.
Exactly what I was thinking may have happened here - low miles on a Vortec small block doesn't mean much to me, other than "it hasn't...
Jun 30, 2024
L31MaxExpress
replied to the thread
Blown motor 1997 C3500 5.7 at 68k miles
.
I love my 383 though. Far more torque for truck things than a 6.0L. For having 7,000 lbs of Express conversion van wrapped around it, it...
Jun 30, 2024
L31MaxExpress
replied to the thread
Blown motor 1997 C3500 5.7 at 68k miles
.
57K on my 97 when it blew up in 2004 due to bad intake gaskets and hydraulic lock.
Jun 30, 2024
L31MaxExpress
replied to the thread
Better AC with different size pulley?
.
I tried another trick this evening. I swapped the blower wheel for a metal wheel with thinner vanes and more opening between the vanes...
Jun 29, 2024
L31MaxExpress
replied to the thread
Better AC with different size pulley?
.
If your truck is a Vortec with a spin on fan clutch should be relatively easy to use the Duramax blade. GM 1580690 on the Hayden 2851...
Jun 29, 2024
L31MaxExpress
reacted to
RDF1's post
in the thread
Unbelievable!
with
Like
.
a bunch of my customers are truck drivers and all refuse to take any loads to CA.
Jun 29, 2024
L31MaxExpress
replied to the thread
L31 Extreme Budget Build
.
I would track down a Volant intake first. I have a BBK but it was like a $15 junkyard score.
Jun 29, 2024
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