to ill or quick or anyone whos had the 3.9 apart

[revolutionaryconcepts]

Do any of ya'll know the crush on these engines, namely the gen 2's? I'm working at bumping the 10.7 to a clean 11-1

 

[Quik LS]

Gen1 V8 - 10.55:1
Gen2 V8 - 10.75:1

V6 - 10.5:1

 

[revolutionaryconcepts]

anyone know where to find combustion chamber cc, and valve lift info?

 

[ILLS]

You planning on having the heads decked a little?

 

[revolutionaryconcepts]

maybe, not sure if it'll be worth it, im thinking of either a tighter headgasket or decking, I would like to see it at 11-1 or higher but not sure how tight these engines are

 

[Quik LS]

I'll keep digging for more:

DISPLACEMENT -----------------------------------------3.9L V-8
BORE----------------------------------------------------3.3858
STROKE-------------------------------------------------3.346
BORE SPACING-------------------------------------------3.858
MAIN JOURNAL DIA.---------------------------------------2.4409
ROD JOURNAL DIA.----------------------------------------2.2047
CON ROD LENGTH (MEAN)---------------------------------6.115
CRANKSHAFT CENTER LINE TO DECK-----------------------8.88
COMPRESSION DISTANCE PISTON PIN TO TOP OF PISTON---1.211

still need the top of piston to bottom of open valve....

 

[revolutionaryconcepts]

I appreciate it man