coltonhirst

looking for some specs on the 04 vortec 6.0 and the 5.7. im also wondering how strong the bottom end is. im going to build one and want to know how many horses the stock bottom end and how much boost it will hold. also is there a swap kit to put one into a 98 k1500. thanks for the help

Dewey

iTrader: (1)

in the future, just do a search

for the LS6

Block Part Number:
12561166
Block Type:
Cast aluminum with 6-bolt, cross-bolted main caps
Bore x stroke (in):
3.90 x 3.62 (99 x 92 mm)
Camshaft duration (@.050 in):
204 degree intake / 211 degree exhaust
Camshaft lift (in):
.525 intake / .525 exhaust
Camshaft Part Number:
12565308
Camshaft type:
Hydraulic roller
Compression ratio:
10.5:1
Connecting Rod Part Number:
12577583
Connecting rods Type:
Powered metal steel
Crankshaft Part Number:
12583565
Crankshaft Type:
Nodular iron
Cylinder head Part Number:
12564825
Cylinder head Type:
Aluminum, symmetrical port
Displacement (cu in):
346 (5.7L)
Engine Name:
LS6 5.7L:
Engine type:
LS Series small-block V-8
Maximum rpm:
6500
Piston Part Number:
88984245
Pistons Type:
Hypereutectic aluminum
Recommended fuel:
92 octane
Reluctor wheel:
24X
Rocker arm ratio
1.7:1
Rocker arms Type:
Investment cast, roller trunnion
Valve size (in):
2.00 intake / 1.55 exhaust

for the LQ4

Part Number
12491857
Description
6.0L LQ4/LQ9
Engine Size
364 cu in
HP
300–325
TQ
360–370

coltonhirst

so the truck motors are an ls6?

Dewey

iTrader: (1)

they never put a 5.7 in the truck in 04. only 4.8, 5.3, 6.0
the last 5.7 vortec (chevy gen 1) was in 98-99 old body style trucks.

CashDudeHomie

iTrader: (5)

The NBS trucks never came with a 5.7. Did you want the 5.3 specs instead?

EDIT: ^^ You beat me by a minute

Dewey

iTrader: (1)

from wikipedia

The Vortec 5700 L31 is a V8 truck engine. Displacement is 5.7 L. It is the last production Generation I small-block from Chevrolet. The cylinder heads feature combustion chambers very similar to those of the LT1 V8, but without the reverse-flow cooling. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. It offers the performance of more expensive heads, at a much lower cost. It does, however, require a specific intake manifold (a Vortec head has four bolts attaching the intake manifold as opposed to the traditional six bolts per head). The L31 was replaced by the 5.3 L 5300 LM7. The 2002 model year was the final year for the L31 5.7 L small block V-8 whose origins date back to 1955. The Vortec 5700 produces 255 horsepower (190 kW) and 330 ft·lbf (450 N·m) of torque. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications.

coltonhirst

that helps im going to college and get a motor when im done and now im pretty sure its the 6.0. how many ponies will the stock bottom end hold up to?

coltonhirst

5.3 specs would be nice too thanks

CashDudeHomie

iTrader: (5)

With rod bolts, it should easily handle 500hp. Maybe more.

coltonhirst

my plan is a little over five at the wheels (until i get the money for the supercharger)