Gm l31 heads
WebMar 21, 2024 · From 1996 to 2000, GM truck and van 350 engines came equipped with L-31 Vortec cylinder heads. Built of cast iron, these powerhouse heads upped the horsepower … WebJan 30, 2024 · The old 1967-1969 “Z-28” valve springs are still available under the original GM part number, 3911068 and can be purchased at Summit. Those springs can accept a cam with .480” maximum valve lift. They were set up with 80 lb seat pressure at 1.700” and coil bind at 1.160”.
Gm l31 heads
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WebMay 21, 2024 · 2,466 Posts. #24 · Aug 14, 2024. I'd go with this GM cam used in the new 357hp crate engine from GM Performance Parts. It's the highest lift most aggressive cam … WebSep 27, 2024 · For those who may be new to the game, the Vortec head was first introduced on the L31 350ci truck engines in 1996. Despite their journeyman use, these …
WebBelow are types of Vortec heads: GMPP' Fast Burn' GM L-31 Vortec; Edelbrock E-Tec 170; GMPP' small port' Vortec Bowtie; Dart IE Vortec; RHS Vortec; Edelbrock E-Tec 200; …
WebJul 27, 2006 · But perhaps the best news of all is that these springs will bolt right onto a stock Vortec head with no machining required. These springs also increase the amount of available valve lift from 0. ... WebMar 1, 1999 · Fortunately, there is an effective upgrade available in the form of '96-'97 Chevy truck L31 Vortec heads with 1.94-/1.50-inch valves. The cast-iron heads' intake and exhaust ports are...
WebGet the Best Performance with Chevrolet Performance SBC Cast Iron Vortec Cylinder Head 170cc Intake Ports 12691728 parts at JEGS. Shop Now at the Guaranteed Lowest …
WebJan 5, 2024 · Sep 8, 2004. 5,677. walton, ny usa. I use the Felpro PermaDry intake gaskets. They are metal with a thick rubber oring type of material molded in. Had them on 4 engines and never any problems. I have had leaks with both the plastic GM type and the typical papery Felpro ones. Just look them up for a 97 Chevy truck 350. clean vitamin d for infantsWebPower: 255 hp @ 4,600 rpm / 330 lb.-ft. @ 2,800 rpm Engine Type: Chevy Small-Block V-8 Displacement (cu. in.): 350 Bore x Stroke (in.): 4.000 x 3.480 Block: Cast-iron with 4-bolt … cleanview car washWebJan 13, 2015 · I'm assuming we're talking about the L31, 5.7 (non LS) Vortec in this thread. Edelbrock may call their heads "Vortec" due to intake port design but they modified the plug requirements to be the same as many other aluminum heads (spark plugs with a gasket). I use AC 41-993 tapered seat plugs in my 1997, 5.7 Vortec small block. Save Share L clean vomit bathroomWebSep 9, 2024 · The L30 head retains a small ramp for swirl. This is part of why the chamber is different (?) (my guess), as the L31 gets its swirl in the chamber purely from it's chamber shape. The L30 uses a smaller 1.84 intake, so shrouding is not really an issue. Before I bought these, I had a set of World Products S/R Torquer 305s I had planned to use. cleanvest.orgWebApr 13, 2015 · Types of GM Vortec Heads. The L31 Vortec heads have larger ports than the older Gen I cast steel heads, so they outflow the … clean vines for jesusWebMay 21, 2024 · These 1996-2002 L31 Vortec 350's/L30 Vortec 305 and the 200hp L35 V6 Vortec 4.3 are all known for being hard on intake manifold gaskets. The 4 vertical intake bolts are installed in pairs at the corners of each intake manifold using a final torque pass of just 11 pound feet of torque. clean view windows worthingWeb5.7L Vortec 350 L31 Tech Specs P/N: 12691673 Power: 255 hp @ 4,600 rpm / 330 lb.-ft. @ 2,800 rpm Engine Type: Chevy Small-Block V-8 Displacement (cu. in.): 350 Bore x Stroke (in.): 4.000 x 3.480 Block: Cast-iron with 4-bolt main Crankshaft: Forged steel Connecting Rods: Powdered metal Pistons: Hypereutectic aluminum Camshaft Type: Hydraulic Roller clean vs dirty dishwasher magnet