I would run this setup
5.3 chevy (certain models had aluminum blocks)
If you look up the LS thread on pirate theres a couple links to some guys who do custom harness and ECU tuning to boost the power on these motors. People are getting 350hp out of a stock 5.3 with a tune.
Ruffstuff 9"
Ballistic aluminum 14bolt hub and spindle kit (FF)
35 spline 300m shafts
Full spooled MEGA Hi9
Wiki data on the Aluminum 5.3
LM4
The LM4 was an aluminum block version of the LM7, and had a short production life. It should not be confused with the L33.
LM4 applications:
2003-04 Chevrolet TrailBlazer EXT
2004 GMC Envoy XL
2004 Chevrolet SSR
L33
The L33 was an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials. Power increased by 15 hp (11 kW), to 310 hp (230 kW), over the LM7, and torque was unchanged. It was only available on extended cab 4WD pickup trucks. Only 25% of trucks made in 2005 had the L33 engine.
L33 applications:
2005-2007 Chevrolet Silverado 1500 4WD
2005-2007 GMC Sierra 1500 4WD
5.3 chevy (certain models had aluminum blocks)
If you look up the LS thread on pirate theres a couple links to some guys who do custom harness and ECU tuning to boost the power on these motors. People are getting 350hp out of a stock 5.3 with a tune.
Ruffstuff 9"
Ballistic aluminum 14bolt hub and spindle kit (FF)
35 spline 300m shafts
Full spooled MEGA Hi9
Wiki data on the Aluminum 5.3
LM4
The LM4 was an aluminum block version of the LM7, and had a short production life. It should not be confused with the L33.
LM4 applications:
2003-04 Chevrolet TrailBlazer EXT
2004 GMC Envoy XL
2004 Chevrolet SSR
L33
The L33 was an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials. Power increased by 15 hp (11 kW), to 310 hp (230 kW), over the LM7, and torque was unchanged. It was only available on extended cab 4WD pickup trucks. Only 25% of trucks made in 2005 had the L33 engine.
L33 applications:
2005-2007 Chevrolet Silverado 1500 4WD
2005-2007 GMC Sierra 1500 4WD
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