Results 1 to 4 of 4
07-20-2007, 12:31 AM #1
- Join Date
- Jul 2007
99 Yukon HP and Performance Specs
i was wondering if u guys can tell me the specs of the 99 yukon 5.7 engine. like HP and tq.
10-24-2011, 10:35 AM #2
- Join Date
- Dec 2004
- Arlington, Texas, United States
- Blog Entries
Another Memory Monday thread revisit. Yet another thread that needs a followup now that it's got a better thread title.
10 Chevy Traverse LT AWD
02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
99 Chevy Cavalier LS (105K+ miles - commuter car)
78 Chevy Suburban Silverado (454, 3/4 ton)
62 GMC 3/4 ton Pickup (350 police interceptor)
Remember: Search Before Posting | Fill out Your Profile & Signature
Follow Us Please: facebook.com/gmtruckclub | twitter.com/gmtruckclub
Support GMTC: Help the site, contribute today
10-24-2011, 10:45 AM #3
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.
- 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
TBI L31 applications
- 1996 G-Series vans over 8,500 lb (3,856 kg) GVW w/ 4L80E transmission
Edit......I Typed in the Wrong Number on the H.P......255 HP......Thanks Charile.....
Last edited by 99'HEARTBEAT; 10-24-2011 at 05:23 PM. Reason: Correct Infor.
10-24-2011, 05:10 PM #4
- Join Date
- Jun 2006
- River Ridge Louisiana-4 miles W of New Orleans-didn't flood-water stopped 800 yards away.
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-
PS The ancient Suburban 217,000 miles- sure feels stronger than 250 hp, but I think 250 is its rating.1998 suburban-
By Rockstarrchevy81 in forum Performance & FuelReplies: 4Last Post: 05-20-2011, 06:06 PM
By popeye in forum Performance & FuelReplies: 4Last Post: 01-31-2011, 11:48 AM
By express conversion in forum General Chevy & GM Tech QuestionsReplies: 0Last Post: 09-13-2010, 02:41 PM
By Santoy956 in forum Performance & FuelReplies: 0Last Post: 06-01-2010, 12:39 AM
By mechalloy in forum Performance & FuelReplies: 2Last Post: 06-04-2009, 06:47 PM