Best 350 tbi heads

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Dec 27, 2007 · I'm looking at options for rebuilding/replacing the long block assy for a '91 350 w/TBI and swirl-port heads (pickup truck donor). GM offers a crate long-block assy that is a perfect match, but GM intended it to strictly be an OEM replacement and has absolutely no performance gain. Mar 26, 2012 · After doing some checking online I see thermostat temperatures listed for the TBI engines from 160, 180, 192 and 195. Anyone know what would be the best value ? The TBI setup came from an 88 suburban if that matters. The temp gauge in the block is reading around 210 and the top hose is under pressure before I shut it off. Top-End Engine Kit, Street Series, Assembled Cylinder Heads, Intake Manifold, Black Valve Covers, Chevy, 327, 350, 400, Kit Not Yet Reviewed Part Number: SDM-1-435-004 More Detail... Mar 06, 2019 · A TBI is caused by a bump, blow or jolt to the head or a penetrating head injury that disrupts the normal function of the brain. Not all blows or jolts to the head result in a TBI. The severity of a TBI may range from “mild,” i.e., a brief change in mental status or consciousness to “severe,” i.e., an extended period of unconsciousness ... Jul 08, 2010 · That is a great engine. Really the only lame 350's were the 87 to 95 TBI engines, and then only because the heads had poor flow. The 96-99 vortecs had great heads, arguably the best flowing production iron head ever. I have a 1994 5.7 TBI block that I want to build into a mild street engine, to go in a 1960 2dr Belair. I will be using a 700R4 trans & about 3.78 rear gears. My question is: In order of best-to-worst, what used factory heads should I use for this engine, starting with vortecs, down to something I can afford? Jan 31, 2017 · The previous generation TBI engines produced just 210 hp thanks to reduced compression, a flat-tappet cam, and minimal head flow, to say nothing of the less-than-stellar induction system. Chevrolet Performance Parts - 12496821 - TBI Intake for Vortec Heads. Designed for swapping Vortec heads onto TBI engines and is EGR compatible. This manifold is primarily intended for use with Vortec heads on pre-1996 engine blocks. Mar 26, 2020 · Edelbrock 3702 - Performer-Plus Camshaft Kit Small Block Chevy 305-350 (TBI/LG4) $210.95 Edelbrock 5802 - Sure Seat Valve Springs for 1957-1995 Small Block Chevy 262-400 OE Cast Iron Head Non-Rotator Chevy GM GMC 5.7 350 V8 OHV 16V Engine rebuild kits for Cars, Trucks, and SUV's. Best prices, Free shipping The 265 cu in (4.3 L) "Turbo-Fire" V8 was the first Chevrolet small-block, although the first Chevrolet V8 was produced from 1917 to 1918. Designed by Ed Cole's group at Chevrolet to provide a more powerful engine for the 1955 Corvette than the model's original " Blue Flame" in-line six, the 162 hp (121 kW) 2-barrel debut version went from drawings to production in just 15 weeks. Mar 26, 2012 · After doing some checking online I see thermostat temperatures listed for the TBI engines from 160, 180, 192 and 195. Anyone know what would be the best value ? The TBI setup came from an 88 suburban if that matters. The temp gauge in the block is reading around 210 and the top hose is under pressure before I shut it off. Apr 03, 2013 · Wendell T. Brown of Kansas City, Missouri, asks us if late 350 Chevy TBI heads will work on a carbureted 1970s short-block. Find out the answer here on HotRod.com or in the April 2013 issue of Hot ... Trick Flow Specialties TFS-K314-350-400 - Trick Flow® 350 HP Super 23® Top-End Engine Kits for Small Block Chevrolet. Head Combo, Rockers, Head Bolts, Camshaft, Button and Lock Plate, Lifters, Pushrods, Timing Set, Gaskets, Kit Jan 31, 2017 · The previous generation TBI engines produced just 210 hp thanks to reduced compression, a flat-tappet cam, and minimal head flow, to say nothing of the less-than-stellar induction system. Quick View. Chevy Small Block Intake Manifold, Vortec Head Design for TBI. $544.98 11. CNC Ported Heads.These heads are fully CNC ported and have our priority racing valve job. In some cases, we may offer 2 different CNC ported versions such as our Stage 3 ported LA or magnum Edelbrock heads, and the BigMouth heads with pushrods moved over to widen the port at the pushrod restriction and increase the port volume. From mild to wild, Speedway Motors has a Chevy 350 Crate Engine for you! Save now with $175 flat rate shipping on all Chevy 350 Crate Engines. Shop dozens of Chevy 350 Crate Engines with fast, same-day shipping. This MABBCO® Master Engine Kit is for an GM Chevy 350 5.7 motor, model years 1987 through 1995. This engine is identifiable by it's 1pc. rear main seal and non-roller lifters. Each kit is custom assembled using parts based on your engine’s requirements. edlebrock used to make a good TBI intake and Holly had a bigger throttle body- probably worth 20 hp together. Don't know if they are still available. Otherwise, some Vortec heads from a 97 350 will add about 40 horsepower by themselves. folks used to make these mods on the 91-93 chevy caprice copcars with basically the same motor you have. Stock TBI unit flows 450cfm and that maxes out at around 250hp. These ultimate mods increases flow to 500cfm which maxes out at 275hp before it starts restricting power. Even a 383 with TBI heads will typically max out at around 280hp which is why I posted that head upgrades needs a bored throttle body which will flow 600+cfm. Jan 03, 2016 · doing a 305 tbi to 350 tbi sbc swap. I have a question about the sensor on the pass side head between the 6-8 cylinder ( fan switch) and (temp gauge sensor) on the driver head between the 1-3 cylinder on the 305 engine. the 350 motor only has the sensor on the driver side and the pass side is plugged. the 305 uses the one wire sensors where the 350 has two wire. how can I get around this? To obtain these types HP, engines were tested with a TBI 52 mm SBC TBI throttle body. This is called base CFM range 670, 700, to 800+ CFM (cubic feet per minute). Requirement for the 50 to 52 mm throttle body: the intake manifold has to be counter bored to 52 mm intake bore size. Our nationwide warranty on the 350 TBI is a whopping 5 years or 50,000 miles. Why? Because we take pride in the engines we build knowing they are our best when they leave here. We use a common-sense and personable approach getting you back on the road as quickly as possible if anything were to happen. Covers all manufacture defects TBI Fuel Injection Having proved their successful Throttle Body Injection (TBI) system during the 1987 model year for the Small Block V8 and Small Block V6 line, GM introduced TBI to the Big Block in 1988, using the same ECM and code, with only the injector and throttle-body size being increased to match. Years: Casting# CID: Intake: Exhaust: CC: Comments: 1971-75: 330545: 307,350: 1.72: 1.5001: 74. 1971-73: 330862: 400: 1.94: 1.5001-. 1971-76: 333881: 350: 1.72: 1 ... What Are The Best And Worst Small Block Chevrolet 350 Heads March 4, 2019 Roadkill Customs Technical Info So, you’re building a budget small block Chevy 350 — what heads should you be looking for and which should you stay away from… Jan 31, 2017 · The previous generation TBI engines produced just 210 hp thanks to reduced compression, a flat-tappet cam, and minimal head flow, to say nothing of the less-than-stellar induction system. Avoid choosing parts that are too "big." Using heads, a camshaft and intake system designed for optimum power in the 3,500 to 7,500 RPM range will not be very easy to drive on the street, but a well thought out 350 CI combination designed to produce power from 2,000 to 6,000 RPM can make 400 reliable horsepower. Nov 15, 2009 · 350 ALL stock bottom end, ported the 062 heads at home using an electric drill, lapped the valves by hand and used carb cleaner to make sure they all sealed up..026" steel head gasket. 224 @ 050 zz4 knock off cam, $89 on ebay (I see they have no more of these) 3000 10" stall 3.08's 60 series street tires Seeing that the normal Voretc 350 L31 heads dont accept over 0.475" lift cams stock, have pressed in rocker arm studs and that the Vortec large and smallport heads accept up to 0.530" lift stock and have screw in studs and flow much better on the exhaust than the stock L31's. it might make sense to get a set of Smallport Bowtie Vortec heads ... Next step up would be a set of cast iron Vortec Heads ($259 each brand spankin' new) and a GMPP TBI intake manifold (another $250) to fit the new heads and TBI unit. Seeing that the normal Voretc 350 L31 heads dont accept over 0.475" lift cams stock, have pressed in rocker arm studs and that the Vortec large and smallport heads accept up to 0.530" lift stock and have screw in studs and flow much better on the exhaust than the stock L31's. it might make sense to get a set of Smallport Bowtie Vortec heads ... Avoid choosing parts that are too "big." Using heads, a camshaft and intake system designed for optimum power in the 3,500 to 7,500 RPM range will not be very easy to drive on the street, but a well thought out 350 CI combination designed to produce power from 2,000 to 6,000 RPM can make 400 reliable horsepower. Years: Casting# CID: Intake: Exhaust: CC: Comments: 1971-75: 330545: 307,350: 1.72: 1.5001: 74. 1971-73: 330862: 400: 1.94: 1.5001-. 1971-76: 333881: 350: 1.72: 1 ... Are you looking to get almost 100 more horsepower from your GM 350 crate engine? This is the Speed Secrets episode for you! Featuring the Comp Cams XM270H ca... Mar 01, 2016 · The NKB cylinder heads are that "something better" coming along. Considering the price is only slightly higher than our former line of heads, this has to be the best value in a set of cylinder heads we have ever offered. We now use the NKB heads on all of our 350, 383, and 406 engines. This MABBCO® Master Engine Kit is for an GM Chevy 350 5.7 motor, model years 1987 through 1995. This engine is identifiable by it's 1pc. rear main seal and non-roller lifters. Each kit is custom assembled using parts based on your engine’s requirements.