Engine build thread

dmaxbowtie

dmaxbowtie

Duramax fiend
Jun 2, 2011
228
0
16
RI
Ok I guess I finally stopped being reasonable and started buying parts for a build today. The setup I am planning on doing is:

Carillos
Mahle race cast
Clevite h series
Arp main & head studs
Bd flexplate
Keyed crank/cam
I would eventually like to run twin stock lbz pumps
60-100 overs????
S366 single (for now)
What injector size and compression ratio should I choose?
My overall goal would to make somewhere in the 800hp range but I would probably only have it turned up that much for track days.
I would like to leave myself the option of twining an s4x? To make my desired power but I will be running the s366 alone for now. The truck is street driven often.
 
dmax711

dmax711

New member
Mar 4, 2011
1,057
0
0
concord, north carolina
dmaxbowtie said:
Ok I guess I finally stopped being reasonable and started buying parts for a build today. The setup I am planning on doing is:

Carillos
Mahle race cast
Clevite h series
Arp main & head studs
Bd flexplate
Keyed crank/cam
I would eventually like to run twin stock lbz pumps
60-100 overs????
S366 single (for now)
What injector size and compression ratio should I choose?
My overall goal would to make somewhere in the 800hp range but I would probably only have it turned up that much for track days.
I would like to leave myself the option of twining an s4x? To make my desired power but I will be running the s366 alone for now. The truck is street driven often.
Click to expand...


sounds like a solid plan.. since your going with mahle race cast why not use fingers pistons? and you could always twin your 66 with a s480
 
dmaxbowtie

dmaxbowtie

Duramax fiend
Jun 2, 2011
228
0
16
RI
I will probably try fingers piston design on the Mahle race cast but I need to figure out what compression ratio to use. Also do the Mahle pistons come with a thermal coating that will be lost with the cutting of the oval bowl?
 
PACougar

PACougar

Active member
Jun 27, 2012
2,105
1
36
41
El Dorado Hills, Ca
I have 60 overs and if you're going to dd your truck I would suggest Exergy 60 overs. If it's going to be mainly used for racing go with 100's. Don't forget LB7 have the largest injectors stock. I know Mark had said that the Fingers pistons run great at lower CR's. I would talk to Mark and I'm sure he could put you on the right path.
 
dmaxbowtie

dmaxbowtie

Duramax fiend
Jun 2, 2011
228
0
16
RI
actually on a laptop and not my phone for once so heres some photos of my build
garage_attachment.php

garage_attachment.php

garage_attachment.php

garage_attachment.php
 
dmaxbowtie

dmaxbowtie

Duramax fiend
Jun 2, 2011
228
0
16
RI
Harbin_22 said:
Why didn't you get the rest of the crank keyed? Mine is keyed on both gears and balancer. Is it not necessary?
Click to expand...

i didnt know any better at the time it was done and this is the first performance duramax engine that my machinist has done. I have debated pulling it back out and having him do it....
 
dmaxbowtie

dmaxbowtie

Duramax fiend
Jun 2, 2011
228
0
16
RI
DBUSHLB7 said:
Love me some build porn! Keep it coming. This build is so similar to mine. You def got sweet pistons and I had just have mine delipped.
Click to expand...


Thanks, i had to go .20 over so i had to get different pistons anyway and it is going to be driven often so i wanted to stay away from forged.
 
Slowmax

Slowmax

Build what others' won't
Aug 3, 2013
468
0
0
United States
Do you plan to run your s366 around the 800 mark with twin pumps? Just looking for insight on this , as its pretty similar to my setup.
 
quinton

quinton

Active member
Nov 28, 2011
1,883
0
36
Granbury Tx.
dmaxbowtie said:
i didnt know any better at the time it was done and this is the first performance duramax engine that my machinist has done. I have debated pulling it back out and having him do it....
Click to expand...


My mechanist did the same. I just got him to put another dowel pin in it.
 
You must log in or register to reply here.
Top Bottom