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i was wondering if u guys can tell me the specs of the 99 yukon 5.7 engine. like HP and tq.
99 Yukon HP and Performance Specs
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The Performance Specs for the......5.7 Liter V-8 Engine,
THE VORTEC 5700 RPO CODE 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 hp (191 kW) to 350 hp (261 kW) at 4600 rpm and 430 ft-lbf (448 N•m) to 450 ft-lbf (475 N•m) of torque at 2800 rpm. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications.
L31 applications:
THE VORTEC 5700 RPO CODE 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 hp (191 kW) to 350 hp (261 kW) at 4600 rpm and 430 ft-lbf (448 N•m) to 450 ft-lbf (475 N•m) of torque at 2800 rpm. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications.
L31 applications:
- 1996–2003 Chevrolet Express/GMC Savana full-size vans
- 1996–1999 Chevrolet/GMC C/K full-size trucks
- 1996–1999 Chevrolet Suburban/GMC Suburban full-size long-wheelbase SUVs
- 1996–1999 Chevrolet Tahoe/GMC Yukon (and 2000 Tahoe Limited) full-size short-wheelbase SUVs
- 1999–2000 Cadillac Escalade
- 1996 G-Series vans over 8,500 lb (3,856 kg) GVW w/ 4L80E transmission
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I seem to remember my 1998 Suburban 5.7 makes 250 hp.
191 KW would be about 191/.75=255 hp.
I HP is about 3/4 of a KW-
Charlie
PS The ancient Suburban 217,000 miles- sure feels stronger than 250 hp, but I think 250 is its rating.
191 KW would be about 191/.75=255 hp.
I HP is about 3/4 of a KW-
Charlie
PS The ancient Suburban 217,000 miles- sure feels stronger than 250 hp, but I think 250 is its rating.
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