Vortec 350 (L31) - GM Truck Club Forum
2014年7月10日 · The Vortec 5700 L31 (Vin code 8th digit "R") is a V8 truck engine. Displacement is 5.7 L. It is the last production Generation I small-block. The cylinder heads feature combustion chambers and intake ports very similar to those of the …
5.7 L Vortec L31 Torque Monster Build Suggestions.
2011年11月8日 · The L31 Vortec 350 that was installed in all GM half ton trucks (Pick-ups, Tahoes, Suburbans, Vans) put out 255 hp and 330 lb-ft. Whoever told you 430-450 ftlb of torque was off by 100 lb-ft. 600 lb-ft is possible but very expensive with a small block.
Vortec Cylinder Heads: The Definitive Guide - NastyZ28.com
1999年3月5日 · Guys, Dave "Dirt" Reynolds has suggested that we devote some space on the message board to Vortec heads. Cylinder heads are arguably the most important link in the "power chain", so it is certainly worth its own dedicated area for discussion.
L31 RPO Code??? - GM Truck Club Forum
2007年12月31日 · l31 : 409 cid v8 400hp (special high performance-solid lifter cam) i thought that it had a Vortec 350? can anyone clear this up for me please, thanks! Save Share
L31 Glove Box Code... Is this right? | GM Truck Club Forum
2009年4月3日 · It's been a week of reading and researching since I bought my 99 LT and I found something that I think I should be excited about. I have a code of L31 in the glove box which is listed as L31 : 409 CID V8 400HP (SPECIAL HIGH PERFORMANCE-SOLID LIFTER CAM) I dont understand because I thought it was a 5.7 / 350. Can someone explain.
1997 1500 5.7L performance upgrades? | GM Truck Club Forum
2014年12月6日 · The L31 also known as the 5.7L Vortec V8 has one of the largest aftermarkets of any "modern" GM truck engine as its a Chevy small block and its parts are used as performance upgrades for older small blocks as well as it is still sold as a crate motor from Chevy.
Timing Cover seal w/ Fel-Pro Oil Pan gasket; 1997 5.7L Vortec (L31)
2019年1月24日 · Wish I had thought about this sooner. I had the original hydrolocked engine sitting in the shop so decided to compare the 2 gaskets.
Timing Cover seal w/ Fel-Pro Oil Pan gasket; 1997 5.7L Vortec (L31)
2020年8月15日 · I'm guessing the problem is a design flaw, but I know there is someone out there that has experience with this engine (L31 Vortec). See less See more *Elderbrock Ceramic Coated Headers, O2 simulators, Super 40 Delta flow duel 2 1/2" Flowmaster muffler
Timing Cover seal w/ Fel-Pro Oil Pan gasket; 1997 5.7L Vortec (L31)
2017年7月29日 · I had the exact same problem when I installed/recamed a brand new vortec L31 crate motor. I fixed the problem by dropping the oil pan and using brake spray cleaner to totally clean any oil in the area where the leak occurred.for the silicone to work on the rubber gasket and the metal sealing surface, it must be totally free of any oil.
99 Yukon HP and Performance Specs - GM Truck Club Forum
2007年7月20日 · 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).