Still in one piece, 19xx miles. Pulling 13.5 mpg back and forth to work daily (2 mpg increase !). Still on stock 6.0 tune. Next, 44 lb. inj.'s (suggested by Allen), and one of Allens tunes. Soon to follow the tune will be the new Fuddle HD Truck 'verter. Will have data on highway mpg this weekend.

 

Took a 250 mile ride since last post. 98% highway. Pulled 16 mpg on way to Mtn. Lk., 3 mpg better than previous best with the 6.0L. On the way back I got mileage. Average of 70 MPH both ways. Seemed as though lockup was not staying in when it should. Allen is working on my 93 octane tune as I post. When correctly tuned for the low RPM beast, all should be cool.

 

thats pretty sweet dude.. i'm saving up for a 402 ls2 swap myself.. keep us posted.. id like to see some dyno results

 

Moved up to 93 octane midweek in prep. for my Nelson tune. Should arrive anytime now. Will post when it's in.

 

What are the specs on the motor?

 

Build sheet as follows;
BUILD SHEET
403/6.6

BLOCK - ’04 LQ9 6.0, HONED UP TO 4.004”. ARP HEAD, AND MAIN STUDS.

ROTATING ASSY. - EAGLE 4.00” 4340 CRANK. SCAT RODS, 6.125”, BRONZE
BUSHED, ARP WAVELOC BOLTS. PISTONS, JE 4032
HIGH SILICON ALLOY, -.5 DOME, 1.110” COMP. HEIGHT
FULL FLOATING PINS. RINGS, JE PLASMA MOLY STD.
THICKNESS. DECK CLEARANCE -.005”

CAMSHAFT - COMP. CAMS, # 54-450-11. DUR. @ .050” 206 INTAKE AND 212
EXHAUST. GROSS LIFT W/1.7 INT. .513 AND EXH. .520
(ACTUAL HIGHER DUE TO 1.8’S). 115 LSA. CAM INSTALLED
BY “INT. C’LINE” METHOD @ 111.0 PER MFG.

VALVETRAIN - ALL CRANE ; 1.8 RATIO QUICK LIFT, GOLD RACE
ROCKERS, SCREW IN STUDS, GUIDEPLATES, LIFTERS, AND
PUSHRODS. ’02 – ’04 ‘VETTE YELLOW SPRINGS
(MADE IN GERMANY). STOCK VALVES, RETAINERS,
AND LOCKS.

HEADS - STOCK 317’S. GASKET; FLATOUT MLS .074” COMPRESSED
4.125” BORE.

INTAKE ASSY. - STOCK ’04 LQ9 INTAKE (SWAPPED ON ’01 FUEL RAILS
TO SAVE REGULATOR). JEGS TB SPACER. STOCK ’04
LQ9 THROTTLE BODY ( ID, BLADE, AND SHAFT
POLISHED). G’TELLI MAF. AEM BRUTEFORCE COLD
AIR.

EXHAUST - EDELBROCK SS SHORTIES. THEN STOCK 3” DUAL TO
MUFFLERS. STOCK MUFFLER REPLACED WITH TWO
FLOWMASTER DELTA 40. STOCK 3.5” SINGLE TAIL.

MISCALANEOUS - LINGFELTER OIL PUMP. LS2 ‘VETTE COILS.
COMPRESSION IS 10.23 TO 1. COMP. CAMS
TIMING GEARS/CHAIN. ACTUAL LIFT AT VALVES
CONSIDERING 1.8’S IS INT. .564”, EXH. .572”. ASP
25% UNDERDRIVE @ CRANK.

DRIVELINE - STOCK 4L80, AND CONVERTER.

FUTURE - GUT THE CATS/DUAL 3” TAILPIPES. HAVE TCI FLEXPLATE
#399753, PLAN TO INSTALL WITH A MILD FUDDLE
CONVERTER. GEAR VEDORS OVERDRIVE UNIT.
42 LB/HR INJECTORS TO BE INSTALLED
WHEN TUNED, PER INSTRUCTION FROM ALLEN NELSON, THEY ARE FROM RACETRONIX.
DELPHI/LUCAS TYPE, DELPHI # 01D030B HIGH IMPEDANCE,
HIGH Z